“If you're just sitting there with your arms in front, trying to wrap, with your head down, you're a sitting duck.

Source: https://www.heraldlive.co.za/sport/rugby/2023-01-24-tackle-height-change-could-leave-players-sitting-ducks-irelands-farrell/

“In prison he will be a sitting duck for disease, and will not get the daily medical care that he needs,” he said.

Source: https://www.bostonherald.com/2023/04/26/ex-harvard-prof-sentenced-fined-for-lying-about-china-ties/