That stain on my driveway in Omaha looks like a mountain range, so is it art or am I just seeing things?
Last month I spilled a bucket of muriatic acid I was using to clean the concrete and it dried into this crazy gray pattern that looks exactly like a ridge line. Some folks I showed it to say it's just a mess to hose off, others want a photo of it framed. Where do you draw the line between a happy accident and a stain you should scrub away?