First Date. Don't be Late. Part 1

OK, to start things off, I decided to take my wife out on a date (simple enough, right?). Even better, I thought I would make the date a surprise. I contacted Julia, our babysitter, and found that she was available on Sunday the 26th. I told her to be at my house at 7:30 and not to mention anything to my wife (it was a surprise after all).

That night, as I had been informed earlier by the wife, me and the Mrs. would be attending an end-of-the-season closing ceremony for our children's program. I had been told it would be over by around 7:30. I thought, "How pleasantly surprised my wife will be when we arrive home afterwards to find our babysitter ready to take over. Wow, what a guy!"

That plan was right on schedule until 7:20. At that point, I realized there was NO WAY this ceremony would be concluded in ten minutes. Not having a cell phone on me, I nonchalantly whispered to my wife, "Let me borrow your phone for a second."
"What do you need my cell phone for?!!! Who are you going to call right now?!!!" she responded in a loud, suspicious tone.
I smiled nervously to everyone who turned and stared in my general direction, then responded,
"I'll tell you later. Just give me your phone!"
I quickly excused myself, stumbled awkwardly down the isle and made for a quiet hallway. Pulling up my wife's contact list, I found "Julia" and hit the send button. "Julia" answered after a few rings.
"Hello?"
"Hey Julia. Sorry to bother you, but we're running a little late. We probably won't be home till around 8:00."
"What? Who is this?" an elderly, somewhat confused voice replied.
"Is this Julia?" I asked slightly embarrassed, assuming I must have hit the wrong contact.
"Yes. This is Julia, but I don't know who you are or what you are talking about," answered the thoroughly senior, thoroughly befuddled voice.
I apologized and hung up. A panicky second query of the contact list showed, to my dismay, no other "Julia" to call.
I was trapped at the ceremony with the clock ticking and no way to contact the babysitter.