That has always irritated me.
Similar to playing 8 ball when you run 6 or 7 balls, but have to contend with your key ball being tied up and have the misfortune of not having a decent shot again, which is usually the result of Mr. Banger running two, lucking a safety, run two again, leave you nothing, does it again, until he finally leaves you a tough bank on the 8 that you rattle. He confidently strides to the table and pokes the 8 ball in, almost following it right in, the cue ball spinning in the jaws of the pocket. He shakes his head, exhaling a sigh of relief. He then approaches you with his outstreched hand and a look of gleaming satisfaction on his Banger face.
Urrrgh, angers me just thinking about it.