I'm sorry. Do a search--there are 247 threads with the word "toilet" in them.
It'd be one thing if it was a unique joke, or hadn't been heard hundreds of times for the last decade.
You can call it "panties in a twist" if you want. I call it stale, unimaginative material.
And, to post it here, it's akin to going to someone's house for dinner and saying, "Your wife's a great cook, but she sure is ugly!"
It's lame.
At the very least, queue up the damn link to the important minute of the 2 hour concert so it doesn't take me 3 minutes to confirm the tired decade old joke. I was hoping someone was playing a bass pecussively like Bongos. Nope--same old lame toilet seat joke. ha. Toilet. Good one!