Where theres a will theres a way. imagine if they have skype for voice chat. They could call out the password as they are typing it in. Or a quick ctrl+c to copy then alt+tab to change top page to another chat room ctrl + v to paste double alt+tab to get up carbon tourney and ctrl+v to paste it there.

So many ways people could give password out. But the thing is most sneaks sneak because they are to lazy to do any of the work themselves. Their hard part comes from finding someone to give them the password not transferring the password between themselves