First, a mentally ill/drug addicted former student sends me an abusive Facebook message because I gave him an "F" on a term paper 21 years ago, then I discover that a former employee of mine has been caught stealing. For thirds, I get a message from Amanda's stolen phone that was meant for the thief's girlfriend.
In the first case, I'm impressed with my former student's ability to hold a grudge. Heck, he's not even Celtic. Although, judging from his grammar, spelling, and usage, I'm reminded why he failed the term paper.