The "no booze" thing is due to possible interaction with the one heart medication.
The "no caffeine" thing is mine - there is some evidence that caffeine (and certainly the amounts I've consumed in the past) are linked to irregular heartbeats; my fibrillation would be a severe, over-the-top version of an irregular beat. The doctor did not forbid me from caffeine.

I certainly plan on being at the fall event. But then, I planned to be at the spring event and we all know where I ended up....