ABA-
dont get so technical.
we all know that adar is a time when the kids are expecting to have a good time and if we dont provide it for them, they will think of thier own hootinanny ideas!
its much safer this way if its just a harmless little prank with a good chap!
my rebbe in 8th grade had us all bring in baby pics around tu b’shvat time and he collected them and asked us to guess why he needed them. x tell us but then on rosh chodesh adar he gave out to each of us a t-shirt with out present school pic on the back and the baby pic on the front in big with our names!!! he told us that we only get shalach manos from him if we wear it on Purim when we go collecting!! My whole class wore them when we went aound collecting and it was a major hit that was a real joke on us! no harm done, but a lot of good cheer was added!