I worked for a small company that did work for a cross-border manufacturer. Coming from Canada, we were told explicitly that "meetings" was a perfectly good reason for a day trip, and we were never there "to work". US customs has been historically as humourless a bunch as ever existed, and the factory on the other side was unionised, so meetings it is.

What cracked me up was driving back late one evening, arriving back at the Canadian side. The agent asked where I'd been, and I mentioned the town just behind me.

"Oh, _meetings_, eh?" wink