Have-A-Heart traps are used by animal welfare groups and animal shelters, so I don't know if it's so bad to wait in the trap, unless said animal groups are incorrect to use said traps. Admittedly, cats who have never encountered these traps sometimes freak out when first trapped, and cats who have seen them before can outsmart them easily. I've never thought they were good for trapping cats, as they are specifically designed NOT to trap cats.

Have-A-Heart traps are intended to trap furbearing animals but allow for the release of cats, dogs or endagered species. You've probably seen them before. These staps are box rectangle shaped, chrome colored, and are activated when the animal places their weight on the lever in the back of the trap. These are also called double door traps.

Bolt guns are commonly used in animal slaughter and are often considered 'humane.' If you eat red meat, the cow was likely killed with a captive bolt gun.