Clowns in Sims 3 Generations?

There are weird clowns (yes, more than one) that keep appearing in the Sims 3 Generations game! It's not the Tragic Clown, apparently it's supposedly dead, but these ones have round heads and they have weird looking limbs. They look nothing like humans and they are very colorful. The question is: How do I get rid of them?? If anyone knows please answer!! Thank you so much! :D