This happened to me about five years ago when I was a brand new F/O on the 737 in AMS, must have only had about 300 hrs TT at the time.
The training captain liked to have a smoke of his pipe on the turnaround, but on this occasion failed to check his DV window afterwards.
He was PF, and going through 120 kts the window slid back creating the most almighty racket! No drama though, he just said to me "ahhh, you take the controls would you old boy?" and turned to close the window!
A RTO would almost certainly have grounded us at that speed, what with melting plugs etc.