I used to get anxious on the river, not really pissed off. Anxious about finding an open camp or needing to go late into the night. Anxious about reserved camps being poached. Anxious about everyone getting through rapids upright. Anxious about the scene at the takeout.
I no longer do. I've learned that I have more fun just going with the flow. That is easier to do after many great trips where any negatives have been far outweighed by positives.
Last year on the San Juan we had several encounters with one group. The first was when two rafts with 5 people showed up at our camp saying they were exhausted and asked if we could share our site since our group was only six people. Our camp was all set up and we said they could camp on the lower bench at the far end. They ended being a group of 17. We learned they would be at Slickhorn C and we had Slickhorn D for the next night so we would be neighbors again.
They left early in the morning and we encountered them again when we got to Government rapid and the TL's raft was perched on a rock in the middle. We, and other groups, helped to pull them off. When we were at Slickhorn camp they yelled "sobriety check" to us when we were chilling on a sandbar that had 6" of water running over it.
Our last camp was two miles below them and we got on the river by 8 a.m. and there was no sign of them upriver so we rowed for the first half-hour to make sure we had plenty of distance. A mile from the takeout we could see them upriver and rowing hard. We got to the landing and tied our boats off and went to get our trucks. By the time we backed down they were crashing in to our boats.
As much as I could have been pissed off, instead I realized what a great time I had compared to what it would have been like being in their group.
I've also learned that you can have the trip you envision if you take the lead as Trip Leader.
P.S. dfresh, the link to "floating downstream on an inflatable rubber raft" is from a band with Kenny Loggins