Scissors, Combs and Pencils

I can't find those scissors.
I've been looking for an hour. ( har )
As any of you lot seen them.
They can't have gone so far.

There once were thirteen pair in this house.
Kept in that sideboard.
Just wait until I find them .
I'll hide them out of the road.

It is same with combs and pencils.
There's always falling out.
For when you come to want one.
There's never none about.

Someone will suffer one day.
You'll hear them shout out … ouch.
Then you'll know the've found them.
They'll be right down the back of the couch.