I do. Constantly.
Quick example: I was food shopping. One of my brolies tagged along because he needed some shit too. So I'm at the checkout line, and I scanned a coupon I had (self checkout line), and it rang up as $1.00 off. So I turn to him and go, "YO! I JUST SAVED A DOLLAR!," then proceeded to give him a high five, pretty loudly.
Everyone probably looked at me like I was a retard. Oh well.