diff --git a/src/adaptors/throttle.rs b/src/adaptors/throttle.rs
index caaef945..ecff0e7a 100644
--- a/src/adaptors/throttle.rs
+++ b/src/adaptors/throttle.rs
@@ -33,15 +33,17 @@ pub use settings::{Limits, Settings};
 ///
 /// Telegram has strict [limits], which, if exceeded will sooner or later cause
 /// `RequestError::RetryAfter(_)` errors. These errors can cause users of your
-/// bot to never receive responds from the bot or receive them in wrong order.
+/// bot to never receive responses from the bot or receive them in a wrong
+/// order.
 ///
 /// This bot wrapper automatically checks for limits, suspending requests until
 /// they could be sent without exceeding limits (request order in chats is not
 /// changed).
 ///
 /// It's recommended to use this wrapper before other wrappers (i.e.:
-/// `SomeWrapper<Throttle<Bot>>`) because if done otherwise inner wrappers may
-/// cause `Throttle` to miscalculate limits usage.
+/// `SomeWrapper<Throttle<Bot>>` not `Throttle<SomeWrapper<Bot>>`) because if
+/// done otherwise inner wrappers may cause `Throttle` to miscalculate limits
+/// usage.
 ///
 /// [limits]: https://core.telegram.org/bots/faq#my-bot-is-hitting-limits-how-do-i-avoid-this
 ///
@@ -209,6 +211,8 @@ impl From<&Recipient> for ChatIdHash {
         match value {
             Recipient::Id(id) => ChatIdHash::Id(*id),
             Recipient::ChannelUsername(username) => {
+                // FIXME: this could probably use a faster hasher, `DefaultHasher` is known to
+                //        be slow (it's not like we _need_ this to be fast, but still)
                 let mut hasher = std::collections::hash_map::DefaultHasher::new();
                 username.hash(&mut hasher);
                 let hash = hasher.finish();
diff --git a/src/adaptors/throttle/request.rs b/src/adaptors/throttle/request.rs
index c109b178..d2188748 100644
--- a/src/adaptors/throttle/request.rs
+++ b/src/adaptors/throttle/request.rs
@@ -145,8 +145,8 @@ where
 {
     // We use option in `ShareableRequest` to `take` when sending by value.
     //
-    // All unwraps down below will succed because we always return immediately after
-    // taking.
+    // All unwraps down below will succeed because we always return immediately
+    // after taking.
 
     loop {
         let (lock, wait) = channel();
diff --git a/src/adaptors/throttle/worker.rs b/src/adaptors/throttle/worker.rs
index 4aa57099..bbf58a97 100644
--- a/src/adaptors/throttle/worker.rs
+++ b/src/adaptors/throttle/worker.rs
@@ -21,7 +21,7 @@ const SECOND: Duration = Duration::from_secs(1);
 // want to change this.
 const DELAY: Duration = Duration::from_millis(250);
 
-/// Minimal time beetween calls to queue_full function
+/// Minimal time between calls to queue_full function
 const QUEUE_FULL_DELAY: Duration = Duration::from_secs(4);
 
 #[derive(Debug)]
@@ -126,12 +126,12 @@ pub(super) async fn worker<B>(
     while !rx_is_closed || !queue.is_empty() {
         // FIXME(waffle):
         // 1. If the `queue` is empty, `read_from_rx` call down below will 'block'
-        //    execution untill a request is sent. While the execution is 'blocked' no
+        //    execution until a request is sent. While the execution is 'blocked' no
         //    `InfoMessage`s could be answered.
         //
-        // 2. If limits are descreased, ideally we want to shrink queue.
+        // 2. If limits are decreased, ideally we want to shrink queue.
         //
-        // *blocked in asyncronous way
+        // *blocked in asynchronous way
         answer_info(&mut info_rx, &mut limits);
 
         loop {
@@ -192,7 +192,7 @@ pub(super) async fn worker<B>(
         let min_back = now - MINUTE;
         let sec_back = now - SECOND;
 
-        // make history and hchats up-to-date
+        // make history and requests_sent up-to-date
         while let Some((_, time)) = history.front() {
             // history is sorted, we found first up-to-date thing
             if time >= &min_back {
@@ -361,7 +361,7 @@ async fn read_from_rx<T>(rx: &mut mpsc::Receiver<T>, queue: &mut Vec<T>, rx_is_c
         }
     }
 
-    // Don't grow queue bigger than the capacity to limit DOS posibility
+    // Don't grow queue bigger than the capacity to limit DOS possibility
     while queue.len() < queue.capacity() {
         match rx.try_recv() {
             Ok(req) => queue.push(req),