Bryan Cranston DESTROYS Fan With Mom Joke At Comic-Con

7/11/2015 9:17 AM PDT

Bryan Cranston -- DESTROYS Fan With Mom Joke At Comic-Con

Bryan Cranston just delivered one of the best burns we've ever seen ... complete with the perfect mic drop.

Cranston, who played Walter White on "Breaking Bad" was doing a Q&A at Comic-Con on Thursday and was asked how he killed time while filming in Albuquerque, NM.  You've gotta check out the video for his EPIC response.

We just hope the fan is alright ... and so is his mother.