Absentee Parents

Alright listen up, buttercup. The "parent" is being a clever clogs by asking if anyone is missing from the birthday party. But the birthday girl zings back, pointing out the real missing people are the parent's own mom and dad, who never showed up to any of their kid's birthdays. This joke works 'cause it's unexpected and a bit savage, kinda like how you didn't expect to get roasted by a bear today. Bet you didn't see that coming, did ya, genius?