Q: Why are frogs so happy?
A: They eat whatever bugs them!
Frogs eat bugs, that is, insects. Therefore, frogs eat the bugs that bug them which, in turn, makes them happy. (My grandpa was happy when eating frogs – frog legs.)
A silly joke that plays with the word “bug.”
Winnie The Pooh would often say, “O bother” when bugged by something: