Ten things you shouldn't do while talking on the phone:
2. Sex <- it ends up bad for all 3 people involved
3. Hold another conversation with someone beside you. It's frustrating.
4. Put someone on hold to answer another incoming call and then forgetting about the person on hold <-- got this from Will & Grace
5. flush the toilet
6. Go to the bathroom...same idea as 5 but she stole my idea 2 minutes ahead of me
7. Perform surgery.
9. Watch a porn video.