Jensen and I usually have pretty different schedules.
There was this one time, early on, when we almost had Henry's allergies under control. He was getting his shots regularly and had no flare ups or skin infections. Then for two weeks he didn't get any shots because Jensen thought I had given them to Henry and I thought he'd given them to Henry. That was well over a year ago & we are just now sort of getting a bit of control over his allergies.
Needless to say, we learned our lesson and now we keep vigilant track of what Henry needs, when he needs it and if it has been given to him.