The probability is really small but there is a chance.

You should worry about dying from a random heart attack or from a lightning strike, or even a meteor wiping our the planet before you worry about collisions.
Make sure your address is truly generated randomly. /thread.
This.
Can someone post the article to this image? I would like to have it with a better resolution, it's hard to read the text.
Back to the topic, I think the only way is to bruteforce the private key, which is according to the description above nearly impossible.