Based on the premise I feel like I've seen this before, but I feel like I'd remember this scene and I don't. Like, I don't even remember the plot of Scanners but can tell you that a guy's head blows up. Oops sorry everyone spoilers.
You'd like this movie, it's actually a really smart movie from the end of the time when it was still possible to make a horror comedy that was smart and funny (that was over by the 90s with the exception of Wild Zero).
(and Dead Alive/Braindead, and a handful of others I'm sure, but in general horror+comedy has been shit since Scream, which was pretty bad itself in my book)