Lounging workers no service.

So I walked in Nandos Centurion, staff sitting down, literally nothing to do and I'm the only customer, I order the least complicated meal and then go sit in my car for 20 min right in front of the restaurant. I decide to go back inside and guess what, this guy gets in the kitchen faster than I can say idiot and he puts my order on the grill. I'm at work and would like my time to be respected just as I left to give them ample time to make my order. For goodness sake with so much unemployment in this country you would expect those that still have jobs to not take them for granted. Absolutely appalling.