Calc II is the highest math I took and by far it is my most hated. I even went so far as to burn the book once I passed the class [Muaha]
Calc II also convinced me to switch my major from Computer Science to Computer Information Systems. I get a laugh out of looking at my transcripts and seeing Calc II listed as an elective [LOL]
In my day to day job dealing with Enterprise IT Security I use some algebra type concepts but that is as advanced as it gets.