Mouth before Brain

"I'm calling to check about visiting with someone who is blind. As their assistant, do I get free entry?"
"Yes you will, although they will need a ticket."
"Do we buy that in advance? Do we need to book anything?"
"You can just get tickets at the entrance desk, and then you're both welcome to simplylook around."

*Brain pauses*

"Uh, poor choice of words, I'm so sorry..."
*Laughing* "Not at all, at least you realised what you'd said!"