People who really want to leave can also take advantage of that 1 minute window of freedom every 45-90 mins...
Press alt+r in mirc and add this to your remotes:
Code:on *:TEXT:*YOU HAVE 1 MINUTE TO PART THE CHANNEL, GET OUT WHILE YOU CAN!*:#dontjoinitsatrap:{ if ( $nick == TrapBot ) { /part #dontjoinitsatrap } }