I highly doubt that is not true. You just probably don't know of anyone who has.No one in my whole family never had or has cancer (luckily). However,my mother's friend's cat died was diagnosed with cancer but, she put her down rather then have her got through surgery. The cat was about 14 anyway.
I had a bus driver some time ago that got lung cancer. Funny thing is, he never even smoked.
*sniff* My grandfather died of lung cancer when I was very young, about 3 or 4. He never smoked, and second hand smoke wasn't there either.
Also a boy in my year had luekemia and he survived, i don't like him much, he wanted everyone in our year to give him presents. So the teachers did, they gave him a TV. a PSP and other stuff.
"Hey let's give this kid material items so when he soon dies, he'll be burning in hell without them!" as compared to bringing him a trip to disneyland or something. I hate those "Give me give me, I'm dying!" people, always wanting everything except the cure.