Happened to me the one and only year working NFHS rules
After 8 years of NCAA rules in Texas HS, I was transferred to Oklahoma.working a game it was7-0
When team behind scored making it 7-6. On the PAT, defense jumped into NZ, snap, flag by me, kick is good.
I went to the R and told him I had screwed the pooch and it should have been a dead ball foul. Points off the board, rekick and he missed. Still 7-6. I felt horrible but it got worse. With less than a minute left in the game it was still 7-6 and I am thinking “ I just caused these guys to lose!”
25 seconds left they scored on a play to the other side of the field making the score 13-7.
The moral of the story is get it right, remember what code you are working under and then you won’t be in that position.