he, she, etc. doesn't miss a trick
(one) doesn't miss a trick
One never misses an opportunity to benefit or gain an advantage from a particular situation, especially in an underhanded or ethically dubious manner. There's always someone out trying to make a quick buck during the aftermath of a disaster. People don't miss a trick. When you're hiring a PR consultant, you want someone who doesn't miss a trick.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
he, she, etc. doesn’t miss a ˈtrick(also he, she, etc. doesn’t ˈmiss much) (spoken) used to say that somebody notices every opportunity to gain an advantage: I’m sure Julie knows your secret — she never misses a trick! ♢ How did he know it was the right time to sell all his shares in the company? He doesn’t miss much, does he?
Farlex Partner Idioms Dictionary © Farlex 2017