One hundred and twenty-one staff from eight bars in Ontario, Canada partici
pated in a three-hour training program that used a peer learning model to t
each problem-solving skills regarding the prevention and management of aggr
essive behavior in bars. Participants showed significant positive changes i
n knowledge and attitudes regarding effective approaches to preventing aggr
ession. The majority of participants reported that the training made them t
hink about ways they handed problem situations and that they would change t
he way they handle problems in the future. Participants rated most aspects
of the training as very useful, especially the group discussion. The progra
m illustrates the potential for increasing skills and knowledge of bar staf
f in preventing aggression and associated injury.