You can do it . . . we can help??

My son, Nathan, has been "working on" our bathroom for about 3 years now. It's been a painfully slow process, but it's not entirely his fault. He has to work around his school schedule, his gaming schedule, his family responsibilities, the subtleties of his motivational levels, our supply of discretionary funds for the needed materials, and the alignment of the heavenly bodies. So, sometimes when he is ready to work, we are not ready to buy the supplies; and when we have money for supplies, he has finals, or...well, you get the idea. Well, he starts back to school on August 22nd, so he's been trying to make up for lost time. I finally sucked the necessary money out of our savings and went with him to Home Depot to buy the vanity and sink (I had purchased the faucet a year or so ago). I chose a sensibly-priced vanity and a moderately-priced sink to go with it. Unfortunately, the moderately-priced sink did not fit the sensibly-priced vanity, it only fit the more expensive model. Imagine that. So, we bought the vanity and sink and hauled them home in his van. Today, Nathan unhooked our old white-with-gold-flecks, 1950’s-style vanity/sink and carried it out to the trash. He had already purchased a new drain pipe of some sort that hooks up to the sink, and it was supposed to be a “universal” size, so everything was good-to-go. Except that the pipe wouldn’t fit the hole in the sink. He told the guy at Home Depot that it didn’t fit and was told, “It has to fit. It’s a universal size.” He tried to explain that it didn’t fit, and the guy just looked blankly at him and repeated, “It has to fit. It’s a universal size drain.” Nathan went back and tried again, and still couldn’t get it to fit. I guess it was designed for another universe or something. So this time Nathan went back to Home Depot and (this cracks me up just thinking about it) went to the display models of sinks, and unfastened the drain pipes from two different sinks. Then he took these two different-sized drain pipes (one of which was the type we had), went back to the wall where our chosen sink was hanging, and showed the guy that one drain fit and the other didn’t. I wish I could have been there to see the look on the guy’s face. He was incredulous. He said, “You took it apart?” Even with the visual aid, this guy was still not convinced and just said, "It should fit." Finally, after all this frustration, time, and gas, he happened to mention to Nathan that the faucet we bought should have come with some sort of fitting or adapter or molecular modifier that would make the pipe fit. And it did. And now it does. Our new vanity looks a lot like the one in the picture, only with two drawers instead of three and with a "California Onyx" (beige) sink. Of course, it will be a while before we can enjoy it in our bathroom. It is now my job to prime and paint the walls before the new vanity can be installed. Maybe I'll be able to afford a new mirror/cabinet by then. In the meantime, we have no bathroom sink and everything that was stored under or on top of the sink is in a laundry basket on the floor. I tried to get Nathan to explain to me why it's now my job to paint the bathroom and why, after 3 years, I am expected to do it in 2 or 3 days. I didn't get a satisfactory explanation, although he thought it made perfect sense. Maybe I'm in the wrong universe.