Life is full of co-wink-a-dinks.
But your fiction shouldn’t be.
I’d like to wax poetic about all the times I’ve seen this done and that I’ve even done in my writing (yes, I’m lazy), but NaNoWriMo is calling. Heed the Pixar-gods:
Coincidences to get characters into trouble are great; coincidences to get them out of it are cheating.