There is something you can catch but cant throw ?

Question

What is something of which there are multiple, but you can't make full a list of, while you can make a list of the worst ones.

Answer 1

COLD, COLD, COLD

Answer 2

I caught COLD

It would be funny if I could throw my cold to others.

Comments

THERE IS NO FUN IN IT, YOU CAN CATCH COLD AS WELL AS THROW IT.