I am new to raising chickens so forgive me if this sounds a bit odd. I use a putty knife to scape the chicken poop off of the roost everyday. I then put the putty knife blade side down into the dirt all the way up to the hilt and leave it there till I need it the next day. My daughter friends thought they would use the same putty knife to split an apple in half to check for worms, no worm, so they ate the apple. I am worried sick. I told the parents and they don't think anything can go wrong but... I KNOW WHERE THAT THING HAS BEEN! Can someone tell me if I am worried for no reason??????