Knives

Ugh we have a 16 month old son whose now very active and my husband is now always leaving knives on the edge of the counters in the kitchen!!!! I always see them and put them high up but what happens if he leaves them out and I don’t catch it on time!?!? I keep telling him over and over but it’s like he doesn’t care he just keeps leaving them or the scissors lying around. He’ll put glass cups and plates on the edge of the counter too! Our son is very tall he gets stuff off the counters all the time!!!