Squeeeaaaaalllllllll! 

Old people getting introduced to technology is always a fun time. Nothing new here--just some nice, can't-be-scripted reactions from the old man, who clearly would share his grandson's enthusiasm for said activity had he not spent his youth buying bagels for a nickel up at the corner store. 

It's almost sad that internet skepticism has to come into play for a video of this nature, but if were on the subject of going full muckracker--is this guy really 84? If so, he's looking pretty damn good.