It's at this point that I tell people what to do in the most rude terms possible (really, I'm an easygoing sort, but I have a real ability to be viciously cruel when it's called for). My wife would be worse.
Right now, we have 13-month old twin boys. In about four weeks, we have another on the way. Frankly, we haven't had any such attitudes come up at all, just people who laugh and roll their eyes about how busy we'll be (the obligatory line when they see the twins is 'Boy, you've got your hands full!' We hear that 9 times out of 10.).
Boy, you've got your hands full!
Congrats! :))
One difference here is that my old buddy in Gainesville is a lefty instructor at UF- then a lefty grad student. He has always had a hard time about the 4 kids and used to apologize for them a lot.