What is a good reaction word other than "wow"?

Question

Used in conversation, you have "man", "oh really","for real", and "wow".

I feel that those words are used for informal conversation and to the under 25 set. What are good words that replaces the reaction of "wow" in the business or corporate world?.

Example1: Your best female friend since kindergarten tells you that she has fallen in love with your husband of 10 years and that they've been having an affair behind your back for 8 years.

Your reaction word: Wow!

Example2: Your supervisor admits to you that he has a slot open for a Jr. Supervisor position but after you accept the offer you find that you have to fire 4 employees because their services are "no longer needed". You know these people personally and would hate to do it and your supervisor knows that.

Your business reaction word: ?

Please keep the reaction words clean.

Answer 1

"im shocked"         it can work both ways.

Answer 2

For informal situations, I would say "d**n".

For formal situations, I would say "Well" or "Dang".

Answer 3

ZOINKS!!