Don't walk

Don't walk on my Carpet!
My Nephew, his friends, hubby & my son all are sitting around, another friend is joining us, just walked in and at the entrance he got stopped by a 3 years old. No one talking, but house of laughter... apologizing to the friend who just arrived & was trying to walk in to sit down. My son stopped him right the entrance of the house, " Don't walk on my carpet with your shoes on, no no no, take your shoes off first then come in". We all burst in laughter & I kept asking the friend to come in, its OK, but no, the 3 years old keeps saying NO, IT IS NOT OKAY to walk on my Carpet with your shoes on- it makes it dirty & brings germs to my house. Still trying to comfort the guest & apologizing to him... he replied "it is OK, he is right, I should have taken off my shoes", " You trained him very well" , my Replay was " aparently not well enough to not to stop guest at the door..." all these while we are still laughing... thank god he had a great sense of hummer.