Strange Noise

You know you're not single anymore...when your son wakes you up from your Sunday afternoon nap to say there's a strange noise coming from the lawn mower....You would love to tell him to wait and mow later when you are fully awake, but you realize how wonderful it is for your son to willingly mow the yard without telling him...In either case you wonder if your son has run over any number of objects he may have left in the yard, including baseballs, tools, or who knows what?!?...You ask him to mow in front of you so that you can hear the noise and sure enough a clunk of grass flies out of the mower...He sheepishly apologized for waking you up and you head back for the rest of your nap....except you can't go back to sleep...Oh well, many more things left to do for the rest of the day!