

No tips on catching live bugs, but if you’re in a apartment situation it’s possible roaches can come from neighboring apartments. (they can even swim up pipes into your sink apparently). I had an apartment where I did the same and I still had issues. I looked under my sink and saw a big hole around where the pipe went into the wall. I bought some foaming insulation and filled in that gap. After a couple days I never saw the fuckers again. So check for any avenues where they can be traveling between units.
My thought is leave them be. Downvotes and blocking should be sufficient if it’s bad enough.