Was recently working three man at one of our smallest schools. Normally we do a split of the JV game (each varsity person works a half with the JV guy) but this night we decided to work both games as 3-man. As said earlier the gym is small - it is easy for the fans to stick their feet onto the floor.
The fans at this school aren't used to seeing 3-man... and not being able to see the game because of where the officials stand...
Well early in the first game I'm working center and have the feeling that something is going on behind me... then someone grabs my butt! I found it quite funny. Some older lady and her two cowboy friends were laughing and giggling. From then on I tried to vary my position a little and give them a better view of the game.
Particularly, 3-man allows you to concentrate much better on your primary area. This also requires that you communicate well with your partners after a whistle because they also are watching their areas and often don't know why you whistled.