Teh fux? Ant Eggs? Your dad isn't weird, your dad is on crack.
All of the people my age in my family (Cousins, sister, ect), are all pretty much horny perverts. We'll get into graphic conversations about sex when our parent's aren't around. And on one side of the family, you have to be rather used to fart jokes.
But hey, I love my family. They amuse me.
Did I mention my mother gave my older brothers porn magazines, as well?