oh! just remembered another one....
Mr Fields was also lunchroom proctor..general maintaining of order. The rule was..NO food to ne taken out of the lunchroom. One day, Mr Fields saw a kid buy an ice-cream bar and slip it into his shirt pocket under a jacket. So, he met the kid just as he left the room and stopped him...
"Oh, John...I was wondering how that new project is coming"
"Oh,,,uh...fine, Mr. Fields..but I gotta go.."
"Well you know, I have some ideas you might want to consider..."
"Um...sure, Mr. Fields...later maybe?"
"But, John...it is due soon, and if we could spend a few mintes now......."(blah, blah, blah...for 10-12 minutes...till he was SURE that ice cream bar was good and soggy)...then he let him go with no mention of the offense!
....we didn't play many pranks on Mr. Fields