I may have heard some version of that a time or two from my Ddad too. One of his less-menacing sayings would be "The sooner we get started, the sooner we get finished." And this gem from my Grandma "If you can't be a help, don't be a hindrance." I say both of them myself pretty often.My dad was pretty quiet so I can’t remember anything he commonly said. The first thing that popped in my head for my mom though was when we were little and got in trouble and started crying my mom would say “Stop crying or I’ll give you something to really cry about”.
Mine too! (or close - I think her exact quote was "It's just as easy to fall in love with a rich man as it is a poor one.") Maybe it was a line from a movie or something?