I've seen him do things like mentioning it as being among his better films and pausing for laughter.
During an interview on the special features for Sundown: The Vampire in Retreat
, he mentions that around the time of the filming, he'd been making plans for Screaming Brain
. He says something to the effect of "So that tells you how many years of my life I put into that damned thing."
Anyway, I didn't get a chance to watch it tonight, but maybe tomorrow.