Please help me settle this petty dispute between me and my OH
His laptop is broken. I don't know whether or not it's my fault...
He left it on the edge of the bed, I didn't see it and I moved the duvet. Laptop fell on the floor (whoops)
He then turns it on and the screen's broken from the inside (whoops again)
He's now saying that it's my fault.
Unfortunately for me, I broke his last one because he left it on the floor next to his coffee and I accidentally kicked it over.
Is it my fault? AIBU to say that he shouldn't have been so bloody thoughtless? 
Off out I go to pay excess of £100 to get it fixed...