What is the best Celtics game you’ve attended in person?

Today I’m stealing our topic of conversation from this SBNation post. I’ll just blatantly steal their lead in paragraphs for my own purposes:

One of the best feelings when watching a game has to be just sharing that experience with other people. You can watch it with friends, family, or strangers at a bar. But when something special happens, you’re all part of it. And you can do this with just a TV.

But some events are more unique just because you were at the arena or stadium. The game itself doesn’t have to be a championship game or anything. In fact, a random regular or preseason game that you remember vividly could be as important to you than any title. It’s all on how you experienced and remember it.

So, provided you’ve had the opportunity to watch the Celtics in person, what was your favorite experience?

If you haven’t been able to make it to a game, what was the most unique situation where you found yourself watching the game on TV (or the radio)?