In case of attribute error while picking an item, it is safer to keep it no?

**Botty Version**
What version of botty are you running? Are you using a pre-compiled release? Which one. Are you using the latest master branch? On which commit?

**Describe the bug**
Currently some items are drop by the bot with the log "Dropping {item_name}. Failed with AttributeError {e}". It would be safer to keep it in stash in some cases, as "asyndesis" did in his fork.