If he suddenly slipped it could go into his throat! I just hope kids don't start eating their food like Marco does!!!
I noticed tonight that he ate something from that long knife and then stuck it into a jar of something yellow (mustard maybe) and then stuck the knife into some food on one of the plates, so surely that jar is now contaminated!!
I am very hygienic in my kitchen and have always told my family never to put a used spoon or knife into something like mustard, mayo etc as it could cause it to go off but Marco seems to ignore that!