DIVEMASTER ENROLLS FOR DSD PRANK

In this prank a divemaster with 1000+ dives enrolled for a beginners diving course a.k.a. DSD.
The instructor knew nothing about it and another instructor was filming it with the excuse that he needed footage for the dive center website.
After testing the instructor's patience for a while (it must be said he had a lot of patience) the divemaster broke character and did a few advanced skills. The instructor surprised and confused started laughing.
Briefing was not filmed but divemaster was playing very dumb from the very beginning (excellent acting).
It all ended with a lot of good laughs and no one was harmed nor offended with the prank.