Getting into the 160s is pretty scary for me, because that's the point where my jeans (normally loose and falling down) fit just right and even begin to get tight. Also, if I don't stop myself at that point, it pretty much means things are out of control and I'm headed for the 170s or another high weight again and I start to look pretty fat then.
Fun fact though I can actually eat and drink my way from the upper 140s into the lower 160s. I am capapble of guzzling copious amounts of water. Add in a large meal of pasta and here we are.