Instant interrupts in arena? You're asking for player reports and a ban. I've watched so many videos of bots doing instant interrupts in arenas, and their opponents instantly screaming, "Bots!" that it's not even funny. Some of the better coded routines have an auto interrupt built in that does random interrupts, and there's even one or two that allow you to set a percentage of auto interrupt success so that sometimes you fail to interrupt to make you look more human.