Is it normal i become savage while taking a shit.

So whenever I enter the bathroom to take a shit, I'm all normal and chill, but 5 minutes into it I start having these urges to kill crush and destroy. Like really sadistic fantasies. I think about gouging peoples eyes and eating children and crushing people with steam rollers and stab-raping people. I thought of an overprotective mother beheading her child and stuffing it up her vagina so she could be 'pregnant' again, and I thought this was absolutely hilarious. But as soon as I'm out of the bathroom, it goes away and I'm normal again.