Context: I innocently rescued a ladybug because it was the right thing to do, like I normally do and didn't know that invasive ladybugs exist....Until after I released it, learning it was a Harlequin Ladybug/Ladybird and felt intense regret about saving it due to them out-competing native ladybugs/ladybirds (I live in the Southern U.S. and they are native to Britain according to Wikipedia) as well as hurting farmer's crops....