Tests, yeah.
Depends which subject, but I remember my Chemistry exam. Test had two parts. Theoretical and mathematical one.
I had at least 10 cheat sheets on my lap and she sat behind me and my friend and read prayer book or something and she didn't notice.
Plus I use cheats for History (I was so close to get caught), Art, Physics & Music.
OMG, the day when the Physics teacher said that we have a test and I didn't study for ****, but while we were writing, some senior students came and played tambour and sing with him. I put paper on the desk and I got B (everyone was so pissed at me)
me too and when the professor comes close I just cover the phone with my leg.