I just told a friend about the discussing we are having. He actually think you sucks :-P. He worked as a miner in Canada for a few monthes. Mining, as you know, is a very physically demanding job. I would think it's much tiresome than what you are(or were) doing. Anyway, this is what I was told -- The miners were very tired but none of them pee every where :-). If ones do a job, do it honestly. --.
I did some so called labouring work too. That was the most precious experince I had in North American. I am proud that I have that part of life. I guess you probably did not do '用一块抹布擦咖啡壶和马桶的' all the time. So what I said in the first paragraph will not apply to you. Hope your wife have a smooth delivery and good luck in your goal.