Spud Kawaiitron once had a bit where they would steal kneecaps and braincells for sale on the black market. They would ask Pearl for her kneecaps and braincells, attempting to remove them with a crowbar. Some other spuds joined the "tax collectors" as well, taxing any new spuds in Pearlcord upon entry.
The Tipping War
During one Satisfactory stream, a war was held through Pearl's tipping jar between the "dekneecappers" and "anti-dekneecappers." Multiple tip and bit messages would be sent from both factions, one demanding the theft of Pearl's kneecaps and braincells, and the other standing against it.
The End
Pearl eventually requested that the kneecap and braincell talk slow down, and eventually, it came to an end. However, once in a while, for special occassions, kneecaps and braincells may still be taxed, such as the lead tax collector (Kawaiitron)'s birthday.