Random thought:
If a player is 38 points behind with just the (27 points) colours remaining (for example), the commentators always refer to a player as 'needing 3 snookers'. (...as they trail by 11 points more than is available).
But, that's not really the case.
If the player needing the '3 snookers' potted yellow, green, brown and blue he'd then be 24 behind with 13 points left on (obviously still 11 points fewer than they need).
But without having 'got a snooker' they'd no longer require 3 snookers, but instead, just 2!
Perhaps the correct phrase should be "..he needs 11 points of snookers" - rather than a specific number!
Also, the player in the lead could accidentally foul the black, giving away 7 points from one snooker.
Random thought over!