When I emptied my radiator I had the antifreeze in a bucket for almost a month. I needed the bucket so I dumped it into a flower pot overgrown with weeds, and what do ya know, three days later, no weeds! haha, Anyway, don't spill any outside. My dad and I had to empty his van's radiator, and the thing was so low the ground we couldn't get a bucket under it. The antifreeze fell to the driveway and we left it there. There were stray cats in our neighborhood, but I haven't seen them since. Sorry Denny...