"Hey mom and dad, great to see you! Long trip?"
"Of course, it's totally cool that you take a nap - it's been a tiresome journey for you guys."
"Good afternoon! ...Late afternoon really. Feeling rested?"
"No, really. He's not hungry. He just ate maybe 15 minutes before you guys woke up.
"Uh...hold on...please don't take off his clothes - we're perfectly capable of deciding whether or not he enjoys his over-alls".
"Wait, no - he doesn't need to suck on steak. We just started feeding him solids as a supplement. No need for steak."
"Hey, thanks for pushing baptism, but that's the thing about being grandparents, you're not parents. You don't get to make decisions about your grandchild. You only get to enjoy him."
"Much obliged for the advice on bedtime, but his bedtime is exactly the bedtime that we feel is proper for him. Remember the whole thing about grandparents/parents? Also, you've seen him for a grand total of ten hours since his birth. I'm betting we know a little more about when an appropriate bedtime for him is."
"Wait, YOU'RE going to bed? Already? Ok, see you tomorrow morning then, right?"
"Huh? What time did you leave? 6:30am? Without even saying goodbye? Ok, well...Happy Father's Day, I guess."