You can 'shoot' through a stainless steel freezer wall, to.
BUT.... you have to be able to get your finger on the trigger first.
This gun was in a ZIPPERED POUCH. How was he going to 'shoot' it if he had to unzipper it to get to the TRIGGER or the SAFETY?
Snakedoctor “im be know whitedevil solder man canna make fire stick go boom plenny no madder baggy. Jess shootum dad firs an ebryting be cook an curry!