conv: My son recently turned 4.  It's hard to watch him grow up so quickly. My son had his 4th birthday a couple of weeks ago. How did it go? What'd you get him for a gift? He got a remote control excavator_comma_ and had a lot of fun at his party.  It's crazy how fast he's growing up_comma_ though. It seems like all those years just flew by_comma_ huh. At least now he's getting old enough to start remembering all these great times!