Identifying Your Training Weaknesses

I'm a book geek. One of the few things I like better than a bookstore is a used bookstore.
Petaluma, California has a very good one called Copperfields, where Angie and I spent a couple hours yesterday.

I bought a mint copy of "101 Stupid Things Trainers Do to Sabotage Success" there and leafed through it last night.
The book serves as an excellent reminder of how many things can go wrong in a training situation.

My pet peeve is #64 - Foolish Icebreakers. I hate icebreakers. If a class is properly designed, the introduction of attendees should happen organically. If you want me to do a formal introduction, fine... but don't ask me to pick which animal is most like me. Just ask me to introduce myself. Better yet, give us a topic-relevant exercise that requires us to meet each other.

Two that I could be better at would be #41 - using inappropriate humor - occasionally my filter doesn't work quickly enough, and #86 - flopping flip charts. I'm a frequent user of flip charts, but this book reminded me that once you flip the page, people can't see what you wrote. The book suggests hanging the important sheets (and they're all important, or you wouldn't be writing them, right?) so the group can refer back to them.
Great suggestion, and a good book.

What are your biggest training weaknesses?