Totally understandable. I used to get really embarrassed too. I don't stutter a lot anymore but it does happen like I said. If its anyone worth caring about. They wont give a shit I promise you. In fact I had a blockage last night. Where you just can't get the word out. Was around a person I just met too. No one cared. I had a solid 5 seconds where I couldn't get the word out. Got it out and the conversation continued on.