Can I just give you a little piece of advice. Bring the sticks you have in a big ziplock bag or tupper ware with a humipac in it.
In Germany excellent Cuban cigars are readily available, so buy while you are there.
As far as your schools restrictions on tobacco, I would defer to the LOCAL schools policy. If there you find that they have restrictions as well, dont use tobacco on school grounds. I dont think they can really kick you out for using a legal product off grounds. \
Just my
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"One fart can foul the air for everyone" - Esteemed philosopher
"If avoiding the nasty $hit is being a snob, them I am guilty as charged."- Same esteemed philosopher.