Me and my wife have some rules and activities that we partake in. Like we will go places like dinner at a local brewery. She'll have me diaper up before we go out and if I am dry when we get home I can take them off, if not I get a change and I'll be diapered for the rest of the night, or some other arbitrary time frame. We'll do this with pullups also and if I wet the pullup while out I am upgraded to a full diaper at some point.
But I think the thing that gets me blushing the most is we have an agreement at home where she doesnt have to ask to feel or look at my diaper. So I'll be like folding laundry or some other chore and she will just slip my pants down a little and make sure I'm not going to overflow it.