Really? You were dropping f-bombs at college and job interviews? What about during your primary education? You made a habit of using profanity in front of your teachers? Ever work in customer service? Try using profanity with a customer and see how long you last.
If you truly believe that you can use profanity in any situation you come across then you are going to be extremely disappointed when you get out of school.
The style of conversation taking place dictates the words I use. in interviews and college, they like longer wordy, drawn out answers. in public, I prefer to get right to the point.