I go to a fairly small private US college. The food isn't bad by any means, and in fact I like it for the most part. 
Come lunch time yesterday I order my typical Italian sandwich and go to the cooler to grab a drink. I set my sandwich down for a second when the wrapper unfolded. Lo and behold, [one of these little guys](https://en.m.wikipedia.org/wiki/Green_stink_bug) was hanging out on my sandwich. 

I then approached the counter where I got the sandwich, where the employee tossed it and made me a new one. I didn't think it was a big deal, I hadn't even paid for the sandwich before I noticed the little insect chilling on the cibatta. Before my new sandwich was even done the head chef approached me and said I could have a free lunch, anything I wanted, "sandwich, chips, drink, whatever", to paraphrase him. 

Normally I get a bag of chips, a small soda, a sandwich, and perhaps one of those Naked smoothie things for later. I grabbed all that stuff atop a pack of Altoids and went to the cashier to be rung out for my free lunch. 

This is where I started to feel kinda guilty about my choices. The typically kind and cheery cashier, who knew of the free lunch situation, told me that I'd have to pay for anything extra as she thought I was just getting the sandwich for free. I then told her that the head chef guaranteed me a "free lunch, whatever I wanted". She called for the chef to confirm, to which I didn't find it necessary. I was willing to pay for the extra stuff myself, but she had already gestured for his attention. After he saw what else I was getting, he confirmed it was ok (a little hesitantly), but the cashier's demeanor changed from cheery to begrudging. 

A day later I still feel like a greedy asshole. I almost don't even want to go to that dining hall because I feel bad. Am I an asshole?