My friend wanted a chocolate ice cream and they said they didn't have chocolate ice cream, which was fine, but THEN we saw them put a CHOCOLATE MILKSHAKE ON THE COUNTER.

to be honest with you you never know what they actually have and what they don't. sometimes if you ask for it they have it in the back just like shamrock shakes sometimes they do or don't especially in Carrollton

I work at McDonald's, we don't have chocolate ice cream. But we have chocolate shakes. It's vanilla ice cream with chocolate syrup in it.

They probably don't have chocolate ice cream. Shakes are generally made from vanilla ice cream and chocolate syrup added and mixed. At least that's how it done 50 yrs ago when I was a soda jerk.