So somebody placed a bot on your server and you want to kill it, but are unable to.

This procedure requires 2 things:
1) Be in Admin mode (/admin)
2) find the name of *your* .player file (in Starbound/storage/player folder)
[will look something like "47eef0ba06c1ab27d76a04a384ce9da3.player" -- example only]
copy the long name part - without the .player

type in game chat:
replacing <playerfilename> with the player uid (pasting it with ctrl v)
make sure mouse is over top of the bot you want to 'own' when you press enter.

This will allow you to be able to kill the bot, as only the owner is able to damage them.
REMEMBER: Use the bugnet for instant kill! :D