We have a family email account, the one that all main email goes to. Its dh's birthday this weekend - a big one. I have ordered from a party supplies firm some odds and sods for the party - plus a massive banner to hang from the house.
I checked my emails today and several of them were unopened, but in a paler shade of grey IFYKWIM ?
As well as the party one he has opened one from 'Paul', which is a request to go to a reunion from Friends Reunited - I dont even know this guy! 
I'm really pissed off. By snooping he has ruined a surprise for his birthday, and more importantly, doubted my trustworthyness (!) by reading a totally innocent email from this bloke who I dont even remember.
He is out tonight so I cant discuss it. I am so pissed off with him, its probably a good thing....