I use wireless internet and so about once a minute (IOW once a lap) I get the "disconnect box" and my hog warps forward. It seems to happen in the same spot every time, unless I die, then it changes to a different spot.
I lag off the edge of Gephyrophobia all the time and going up the ramps in Sidewinder. I warp into walls, rocks, trees, and teammates a lot. It feels like I always lag when going around a turn in Death Island, then I have to swerve back (or turn around) for the nav. If only it would happen on the straight parts of the map!
I warp past navs all the time, have to turn around and go back for them. If I warp through the lap nav, My gunner and I will get the lap point (you can hear the score tone, you can see it on the score board) but the nav stays there and I still have to go back for it.
If driving is hard, gunning is nearly impossible. I (honestly!) do all right as a gunner with Real Internet, but I can't hit anything with the rockets with the wireless. I have to shoot the chain for a few seconds until I can find the laggy sweet spot and actually hit people.
Every once in a while, the lag actually saves me. People in my hog think it's funny when we warp off the jump in Infinity for the third time in a row. It just drives me crazy.
I'm glad to get that off my chest!