Not looking to "gain" anything, as I know NONE of you here to gain anything from lol. Secondly, the door CLEARLY has a window to the outside, even if the baby does not know what the mailman uniform looks like, I'm sure the parent does. And they also know the way their door is designed as far as receiving mail. (Not at all saying whether this is good or bad parenting - as that seems to be the big debate here in the comments).

Though, the parent could've just been randomly recording a youtube video and walked down the stairs and "ohh the baby is on the fire truck looking out the door window" not knowing the mailman was walking up is a possibility.. so yeah, correction, I'd give it a 98% chance thew knew and expected this would happen instead a full 100%.

Either way, still not looking to "gain" anything here online. Just thought it fit the sub, with the title being my initial thoughts when I saw the video. shrugs