hilarious joke

[stevenmai]

The husband was sitting on the sofa and watching TV, the wife comes out and says :
" Honey, our fridge was a little cranky, do you mind to fix it? "
" I'm not a mechanic, OK?" Says the husband.
" I think we need a shelf, can you build one? "
" I'm not a carpenter." Impatiently says the husband.
"Can you......"
"I'm your husband, not a versatile robot !" He walks out and slams the door.
Later on, he feels guilty about being that unreasonable to her, and decides to go home and do everything she asked. When he is home, everything was done.
" What happened? " Asks he.
" After you left, a hot guy passed by and asked me what was wrong, I told him why, then he said he would do everything for me if I promise the either favor he asked me."
" What were the favors? "
" He wanted me to sleep with him or bake a cake for him."
" Which one did you pick? The cake, right? "
" I'm not a baker......"
This is a joke I read in a Chinese forum, I found it very funny, then I translated it. I'm not very good at English, therefore, I think it's kinda hard for you guys to understand this joke, do you get what the joke says?