I quit complaining about calls around 2005. I yell at my coaches and players if they complain.
I will ask a question so I can understand if it was just a bad call or I didn't see something, but I don't raise my voice.
Believe it or not. Ask a ref.
If you believe you can buy a call later by whining now, more power to you. I'd rather not give my kids an excuse to lose.