Someone might commit arson

Or put a fake spider on fishing line and rig the line through the top of the door. Drop it down and listen for the blood curddling screams haha.

Or taping a fake spider on the TP roll

This is something I would do. >:D

no way i'd scare myself doing this

I found a 2.5 inch roach outside yesterday on the window... big enough to eat the two house geckos a window over. I like the geckos and all... but no way was I going to try and kill that roach only for it to turn into a mothra and swat around.

Use real cockroaches for a more authentic look.