claim: It is customary to only wear uniforms while Trick-or-Treating.
evidence: Denis James Evans , -LRB- born 19 April 1951 in Sydney , Australia -RRB- , is a Professor in the Research School of Chemistry at the Australian National University .. Chemistry. Chemistry. Australian National University. Australian National University. He is widely recognised for his contributions to nonequilibrium thermodynamics and nonequilibrium statistical mechanics and the simulation of nonequilibrium fluids .. nonequilibrium thermodynamics. nonequilibrium thermodynamics. nonequilibrium statistical mechanics. Non-equilibrium statistical mechanics