Back in the mid-70s, I was a sprog civilian instructor at West Malling. The very first time I tried to get out of a Sedburgh, I stood up in the cockpit,and put my head forcibly into the bottom of the leading edge of the wing. There was a dent in the ply skin, and my head was similarly affected.
The aircraft was immediately quarantined for an inspection / repair by the regular repair delivery / visiting inspection from St Athan.
Get your act together in today's terms, and fly safe. So many of us owe so much to the ATC.