I hated giving talks and cancelled most of them at the last minute. I got to the point where I didn't bother calling the school overseer. I'd just send him an email an hour before the meeting. If he neglected to check his email, that wasn't my problem as far as I was concerned.
Wow. I was the Super-MS pinch hitter. I could BS my way through any of these. The last couple of years I started sneaking in subtle apostasisms but never got called on it.
BTS