Why don't they just give the parents a free weapon of choice upon entering why they're at it?What's to blame for the outbreak in "Cool Chuck" related violence? Security experts point to the "mama-bear instinct," as the loud noises, thick crowds and emotions of children's birthday parties (hosted by the establishments) heighten parents reactions to what they see as threats to their children. Alcohol may also be to blame as 70% of Chuck E. Cheese's serve wine and beer in order to give parents more of a reason to bring their kids for a good time.