in my last band we used to play at this place once a month and always got a good crowd.... most times there were regulars that would come and there was one young guy with his mates who was always drunk.... he always came up to the stage and smiled at our singer (I'm pretty sure he had a crush on her).... occasionally he would grab the singers tambourine or maracas and wander into the crowd, but he'd always give them back.
One time he came up on to the stage as we were singing 500 Miles (The Proclaimers) and took the singers mic off the stand, but luckily the drummer quickly pressed 'mute' on singers mic channel on the desk and sang the song as he always does.... the drunk guy kept singing into singers mic - even though no-one could hear him.