Its a damn shame we can't get a registration, or partial one for this jockey. Could soon trace the flightplan back to base..although come to think of it, someone this daft probably filed an incomplete flightplan anyway.
I'm sorry but I keep thinking what the result would have been had he collided with you SC, or got tangled in mast rigging or whatever. The results of foolhardy people can be horrendous in the extreme. He/she may not have realised the gravity of what they were doing yesterday but even that is no excuse for sheer bad airmanship imo.
He got lucky yesterday, next time he might not be so.