You just got into a time machine back to the early 90s. You get to select one of these actors from saved by the bell who will sit on the gyob gunk dunk. Dave Benson Phillips asks who deserves to sit in the contraption. Whoever you choose will have the school custard and RAW dropped over the heads and then will ultimately face the black, yellow, and orangey goop below when the seat is released and knocks them in.
Who do you choose? Zack Morris or AC Slater? (This is an American show, but sometime aires here in the UK).
There's also a scene when they've been fighting and they accidentally grab the punch ladle together at the same time at a school dance. After splashing some on each other's shirts tit for tat, Zach pours a spoonful down the back of Slater's shirt. Then Slater ladles some up and pours it down the front of Zach's white pants. The audience is "ooo"ing and gasping with each escalation. It's very quick but it also got me very...excited...and provided the basis for many a SBTB messy fantasy!
On Extra TV, they visited Universal Studios and he got a massive bucket over his head then too. The photo is from it. There used to be other photos, including an amazing slime trail down the back of his shorts, but it doesn't seem to be online any more.