P1 docked his Northriver in front of Puffin Cafe to retrieve trailer.  Four of five passengers were dockside, P1 on boat at time of 1st collision.  P2 Operating Sea Ray accelerated throttle by accident while attempting docking near P1.  Port side of Searay struck P1's Yamaha outboard engine casuing damge to the engine.  P2 trailered boat then retruned 10 minutes later to exchange perosnal infomration .
Washougal Washington          