Why Boxer dog's die young

Here's a website to check out for food items toxic to dogs (I apologize for the background 'music'):
http://www.dog-first-aid-101.com/toxic-foods.html

Also, keep in mind any possible dangers if you have to confine/contain your dog during the day. Some years ago we had some friends who had a Boxer that loved to jump. They both worked during the day so would tie their Boxer to a stump that he could still pull around their yard but cut down on his mobility some - they figured it would prevent him from getting a running start and stop him from jumping over their fence.
Unfortunately, they came home one day and found the dog had jumped over the fence and hung itself. He'd pulled the stump closer to the fence gate but not close enough to allow his feet to touch the ground on the other side.
As with Ramcharger, I don't mean to freak anybody out - just caution you about potential dangers.