That is bad, Ballygrll! 
That pajamas-on-Christmas-Eve-from-a-Grandparent is an ancient and widely-practiced tradition. We were allowed to open one thing on Eve, from my paternal Grandmother, and it was PJ's and the like. One year, it was sheets. We kind of all mumbled, how nice, etc. You know what? They don't make things like they used to. They were excellent sheets and we all took them to college (no silly bunnies or anything childish. That would not be like Grandma). They could be 40 year old sheets and still going strong.
My Holiday pet peeve here. Darn it but this drove me crazy for years.
My oldest child a daughter---could be at times the one I wanted to adopt out, what a rotten kid she was.
From about the time she was 10 years old this child would go on a spy mission to find out what she and the other 3 were getting for Xmas.-----
It didn't matter where we hid the gifts, she would find them and tell her siblings what they were getting a week ahead of time.----At one time I even locked the gifts in the trunk of my car but she knew how to use the car key to peek.
Then I met years later a woman at work in her mid 50's that did the same. Hubby would order my surprise, or I order his and have it sent to work to hide in our lockers. This #%$^& witch hung out in the mail room and came prancing up to me one day all smiles to tell me she knew what I was getting for Xmas.
Well she says, a package came in for him today, he bought you a West German Coocoo Clock.----Then when my package for Hubby arrived she could not wait to tell him what I got him.
I was not the only victim, half the plant did this that had family or spouces working there. We decided not to beat her up, one wanted to hang her but we talked them out of that.
Xmas eve open one present, Christmass day if there are any others then go for it.
