My father was widowed just over a year ago. He lives quite far away at the moment, so tends to come and stay for week long chunks.
Thing is, it just gets me so stressed because he tries so hard 'not to get in the way' that he ends up causing more problems.
I have no idea how, but this morning he knocked three hama-bead pictures, which were high up on a shelf in the kicthen, waiting for me to iron them, and must have spilt the beads all over the floor.
But rather than telling me, he just swept up the beads and PUT THEM IN THE BIN
.
The first I know of it, of course, is DS in floods of tears saying 'who threw my hama pictures away??!' 
Why couldn't he tell me? When I asked him, he said sorry and that he'd buy some more, but that's not the point. I just don't understand why he's put them in the bin - like he's hiding the evidence? He must have realised we'd find out? It's not the sort of behaviour I teach my children - they are taught to 'own up', and in return I promise to try not to be angry...