The worst mistake you can make is underrating your enemy. Assuming that they're evil - I think it's a terrible thing to do.

Bullying is a terrible, terrible thing.

Addiction is a terrible thing.

I have some wonderful friends from the Mideast that are as red, white and blue as anybody you know, that have been harassed, and I think it's a terrible, terrible thing.

It is a terrible thing to see and have no vision.

The waist is a terrible thing to mind.