...when you "think" you recognize a phone number as being one of your friends and you answer it in an unprofessional way, only to find that it's actually a client?
I need to plug in phone numbers of friends into my contact list on my phone.
It wasn't "too" bad. I answered it with a big "Helllloooooo....how are you?" instead of my normal "Good afternoon..." followed by my business name, followed by my name etc.
It could have been worse. I could have answered with "What the hec was that on your facebook page last night?", or "I don't know about you, but I'm having a crappy day" or just a blunt "What do you want?".