First off, this is purely hypothetical. I cache with my phone and can look up a travel bug's mission while I'm still at the cache, then decide whether or not to take it.
Say you don't have that ability, though, and remove the travel bug from the cache. When you get home, you look it up and realize that you can't help it on its quest. Do you run back to the cache and put it back? If you've already logged the find, do you put another note saying you put the bug back? Put it in a different cache, but still close to the one you found it in?
I'm just curious, in case I'm ever in a situation where I can't look up the bug before taking it. Is it best to just leave the bug there if you don't know its mission, or always look up the bug before you go hunting for the cache?
Thanks for any info!