Not just Wasps though, sometimes the oppo return the favour!
Away at Irish at the Mad Stad several years ago, we were already well beaten , and I think it was Leguizamon clean through and went for the big swallow dive over the line with no-one near him, only to drop the ball.
Then of course there's Sam Vesty at Bath in 2012. Should've scored, but slowed casually as he approached the line and Varndell got to him in time, denying him the try and securing Wasps a LBP that ultimately helped us stay up that season.