The inability to find things

Oh this drives me insane, Mr H really cannot see beyond the end of his nose. It is, I think, that he has a picture in his head of where an object should be, and if it isn't in that exact spot, if it is just to the left or right, or above or below, he cannot see it, and he reverts to panic mode, and then there has to be blame. A  week ago he went into the garage looking for his staple gun, and couldn't find it; came back into the house ranting that our builder had stolen it. I pointed out that our lovely builder had brought his own professional quality staple gun when he had made a cage for our septic tank, and that our little cheapo B&Q number would be of little interest. I went into the garage and located said item within seconds, took it to show him and got the expected response; " well I couldn't see it, it's not my fault, it's my eyes" my eyes? This is a man who drives around the motorway network on a weekly basis, if he can't see a piece of equipment on a shelf in a garage, how in heavens name can he see where he is driving?( I hasten to add that he has regular eye tests and is perfectly fit to drive!). This is about not looking. He often asks me where something is, (usually adding " I don't expect you to look") I go and look, I find, I show him, he forgets instantly. It drives me mad!!!
It goes on and on, this evening at tea time he was looking for tomato ketchup, I have told him till I am tomato coloured that spares are in the blue basket in the utility room. Difficult? Apparently so, he went into a panic that the tom sauce was almost empty and that he had looked everywhere but there wasn't a spare.
Me "where have you looked?"
Him  " I have looked everywhere"
Me ( with bottle of Tom sauce from blue basket ) " there's one here, in blue basket where I told you"
Him " well I forgot"

A little bit of me wants to kill him ( possibly with his staple gun) or let him do without tomato sauce because he can't be arsed to look for it.

I am utterly fed up of being his mother rather than his lover.

Sorry for the rant
Hannah x