ossession of a letter signed by Mark Briggs, Vice President of Security and Front of House Operations.]???Illegal drugs and any other illegal substance.???Coolers or containers, including cans and bottles.???Umbrellas.???Fireworks or pyrotechnics.???Animals, except service animals assisting those with disabilities.???Strollers or baby seats.???Folding, stand alone, chairs.???Noisemakers, bullhorns