The Triple Threat

My friend at work, good guy though he is, has three bad habits that tend to irk me.

1. Nervous nail biting. He is constantly chewing on his nails when we work. It's not just a when-they're-long kinda thing, it's an slow ongoing chew.

2. Touching the computer screen. He has no qualms about touching stuff that's going on on the screen for long periods of time.

3. Pointing at stuff with his middle finger. "Hey look at this, also fuck you"

Now, alone, all these unconscious habits wouldn't get to me. We all do things that bother the people around us. However, these habits fluidly combine into the ultimate transgression and the next time he touches his chewed up middle finger to my computer screen I may start bleeding internally.