Sorry this is long. Its hard to explain without some background Background: I joined a band a few years back and played about 100 gigs with them in about a years time. It became obvious very quickly that the leader of the band had serious social/emotional problems he would freak out if we questioned anything about what he did as far as bookings. Like booking an out of town weekend of gigs and renting a house (and inviting his parents to stay at the band house) and we make a whopping 50 bucks a night. He called this a paid vacation His dad, who is also a bit out there, also participated in the crap hed call clubs a day or two after we played there and rave about how great the band was this was embarrassing! LeaderGuy then started losing it on gigs something would piss him off and he would do the whole gig and not talk to anyone in the band totally ignore us. Wed load up the PA in his truck after the gig and hed just get in his truck and peel out into the night. Hes a horrible musician totally crappy guitar player, and totally off pitch when he sings and he jumps around like a rat on speed totally embarrassing to play with. Yes, I know I should have walked when I first saw this stuff We started losing regular gigs he said clubs were complaining about our singers musicianship. Turns out he was losing our gigs for us by hounding the clubs too much for more dates and telling us gigs were cancelled by the clubs when they werent making us a no show we didnt find this out till a few months after. As things progressed our singer, guitarist and I talked and decided to record our own demo and to start planning our separation from the band we made our demo. And started contacting clubs. I finally had enough of the guy and quit. They continued with the leader guy deciding he would play bass he sucks even worse on bass then on guitar! But his tantrums just got worse till finally the singer and guitarist quit the band. We immediately started trying to book dates and one of the clubs contacted the leader guy and told him. Leader Guy send our guitarist an email blaming all lost gigs on the singers musicianship and calling us all back stabbers for trying to book clubs that he had worked so hard to build a relationship with. He is pretty immature and posted updates on Facebook about what backstabbers we all were and how karma was gonna get us. It was rather pathetic. So now were playing a lot of the places that he said cancelled us because of our singers musicianship (who talks like that???) The crowds are digging us and having a blast, the places are staying pretty busy all through closing even the bartenders and waitresses are dancing and singing along to the music. Finally, heres the issue a few weeks back we played one of our favorite venues had a great night the place was packed with people drinkin and dancin till closing time even the staff was dancing and singing along a totally fun night. A few days later our guitarist calls to follow up on the gig and book some more dates, but he is told that there was a complaint call the day after our gig no name, number or anything just a random call. We are assuming it was leader guy from the old band, or his crazy dad. We are still in communications with this club in hopes of booking more dates. But were not sure how to deal with this guy in the future has anyone ever had to deal with ex-band mates like this? Its weird to even consider giving clubs a warning about him makes us sound paranoid but we dont want him and his crazy dad to wreck any of our relationships with our clubs any suggestions? Killing him is not a realistic option.