"I've messed with the wrong person"

[DC]

What's your best "I've messed with the wrong person" moment?

[The Blackangel]

In my case, it's always been other people saying that about me. I can kill without thought, and then get a hot dog afterwards. I'm certain that I'm the most violent, malicious, and vindictive person anyone here will ever meet.

[Justin11]

I never found a good match as a friend, most of the ones I've met just want to suck all the time from me, and not thinking about what I'll gain from them. I don't like such kind of relationship, that was a big mess in the past.