Add note on closing a stream
diff --git a/docs/FullGuide.md b/docs/FullGuide.md
index b0cad02..223fc9c 100644
--- a/docs/FullGuide.md
+++ b/docs/FullGuide.md
@@ -239,7 +239,7 @@
 
     stream->close();
 
-After you close a stream you cannot call any of its methods.
+Do not close a stream while it is being written to or read from another thread as this will cause your app to crash. After you close a stream you cannot call any of its methods.
 
 ### Disconnected audio stream