requesting.go | 6 ++++++

diff --git a/requesting.go b/requesting.go
index d43114138ed4f081e2384df82b8330d0991402ff..c1575885d281605823bceba42eb584578b62b396 100644
--- a/requesting.go
+++ b/requesting.go
@@ -144,6 +144,12 @@ 		ret := t.pendingRequests.Get(index)
 		if current {
 			ret--
 		}
+		// I have a hunch that this could trigger for requests for chunks that are choked and not
+		// allowed fast, since the current conn shouldn't already be included. It's a very specific
+		// circumstance, and if it triggers I will fix it.
+		if ret < 0 {
+			panic(ret)
+		}
 		return ret
 	}
 	ml := multiless.New()