Watch Dogs‘ multiplayer is built entirely on annoying your fellow players. You sneak into their game and do anything from follow them around to actively try to mess with them. You can do this at any time, as well. And it’s surprising how often you can turn the tables.
Truth be told, this is actually a fairly straightforward depiction of what happens, both on the receiving end and the attacking end. The game’s multiplayer is actually surprisingly solid in the sense that when you opt-in, it can be fairly amusing to bug other players, even if revenge is not just commonplace but actively encouraged. And, yes, the tailing missions are really that bad sometimes.
Although I just feel bad for the guy swimming towards the boat. That’s got to be frustrating.