In case of spider

That's where Mr. Hairspray and Mrs. Lighter come into play.

I'm sure the toilet holster is just for when they are on the toilet. Letting your sidearm rest on the floor isn't the best thing for it, so they use the toilet holster to always have it ready, in case of emergencies.

I didn't know that. I thought it was just a loose gun and was concerned about it's accessibility. My bad.