Subway Is Annoyed By Drink Poachers

Josh’s Subway doesn’t take too kindly to those who bring their own cups to fill up at its freestanding soda fountain. It also isn’t to keen on those who keep cardboard Subway cups as refillable souvenirs to be used day after day.

He writes:

Here’s a sign I spotted at a Subway in Sun City Center, FL. What is
this world coming to? What do you mean I can’t bring in my own cup and
get a free drink? Sheesh!

If you’ve worked fast food, did you care if people came in to scam off your fountain? If so, what did you do to prevent the scammage?