good luck i'm sure your have great fun and burn off some of the excess energy a boxer has. i have a boxer but he's 9 years old now and the best dog in the world, he loves all people and dogs but it took alot of training in the early years to get him so well behaved.
have fun,that is all you can do with a Boxer they are the best dog ever (we have a Boston Terrier as well you might say she is the worst!)but we love her.We have had boxers for nearly 20 years and they do try it on. lets us know how he gets on with his class