Slap McShotty is a notorious sperm donor, regarded as one of the most generous of such donors on the east coast. His seed is so strong it would escape containment and invade other samples, eventually winning out over the foreign contender. As such, he has countless more children than officially recorded, which is a lot in its own right. Every father's day, his children, whether known or unknown, have an unexplained instinct to send Slap a gift. The amazing part is that many don't even know his current address, and yet they are able to send the mail to the correct location. Many studies have been performed on this phenomenon, attempting to determine the source of this homing-pigeon-like instinct, but nothing conclusive has yet been determined. All that can be observed is that these children put their pen to an envelope and the address writes itself. They even seem to know what kind of gifts Slap would enjoy based on his needs and interests at the time, and all gifts received by the man contain no duplicates. Essentially, he's crowd-sourced his father's day.