Lighthearted of course but it really annoys me when DH never reads the instructions when doing diy, which means he takes twice as long or gets things wrong!
I got really annoyed when he just 'bodged' setting up the pram, which meant that when we took DS out, and we hit a kerb, the whole thing almost fell apart. 
told him off then and he's tried a bit more since
But last night asked him to measure up blinds as I was feeding DS to sleep, gave him the instructions on how to measure up. He did them and when I went to check this morning, they were totally wrong!
I know if you want a job done right you should do it yourself and all that, but I shouldn't need to have to check his work!! Arghhh