An american view of Australian Road signs

I picked up an American Hitch-hiker yesterday. He disliked the signs by Australian roads that provide advice like, micro sleeps kill. Do people just drop dead on the spot from micro sleeps? It's insidious, he said. What will then happen? Will they put up a sign like "We know you slept with a dog last night!". (Little does he realise that I have a very literal mind.) But I liked him. He was a good fellow. He wanted to know why there were no signs saying obesity kills.

This got me to thinking. Clearly these sign writers have limited themselves too much there. Here are some suggestions for the NSW government on better and improved signage.

1. All junk food, such as fast foods, and soft drinks should have warning signs like Obesity Kills or sugar rots.
   
2. All religious organisations should have signs like Holy Wars are Killers, or Not taking medicines results in shorter life, and suicide bomings are murder!.

I have not spent too much time thinking up new topics. Fell free to add any of your own in the comments below.