The box should have a warning like you see on the side of medications.
"The assembly of this dollhouse may cause fits of rage, hair loss, eye twitches, blurting out of obscenities, uncontrollable shaking, panic, blurred vision, vertigo, rapid heart beat, nausea, headache and extreme fatigue. If any of these symptoms don't subside do not smash the house into pieces. Seek medical attention. The manufacturers of this dollhouse accept no responsibility for your actions and accept no liability when you take a hammer to it."
I kid you not. This thing came with about 12,000 pieces. After about 3 hours I gave up and had a nap and slept for a solid 2 hours. I came back refreshed and it took about another 2. The kids and the cat (thinking it was being built for him) did not help. When I finally finished we had to go to buy 6 aaa batteries, not included of course to make the doorbell and lights work. There were a few leftover pieces but I just pushed them under the couch.