Played with my regular Tuesday group @ the regular course yesterday. They're beginning to punch/sand the greens (doing the front 9 first) so, we played the back 9. Went out in 40, then started the second 9. We immediately had to wait on a foursome in front of us that was taking forever to play; I think one of them was teaching the others or something. And, they were completely oblivious to the backup behind them. I can usually take a bit of waiting but, this was clearly turning into a 3 hr 9...so, I just walked in after 11. Shame since it was a gorgeous day but, there's no enjoyment in a 3 hr 9.
I heard the marshall go after them after he asked me why I was walking in; I told him what was going on.