Until his dismissal for 104, the only time England batsman Joe Root let down his guard against New Zealand was when he scored the runs which brought him a maiden test century.
Like an ending to any self-respecting Scooby-Doo episode, he ripped off a dour, earnest, reserved mask to reveal unabashed joy as he boogied down the wicket to his own imaginary tune. One suspects it's just the opening track on a whopping compilation album for the 22-year-old in the English test team.
"It wasn't meant to be [a dance move],'' Root said sheepishly, "but emotions took over and that's the result. I got lost in the moment a bit, because you only get the first one once. I tried to enjoy it.''
Before a steer through the slips to bring up 100, his phlegmatic disposition caved just once on 92 when Neil Wagner deflected a Jonny Bairstow straight drive onto the stumps. Root had the presence of mind to get a foot inside the popping crease. He smiled wanly. One run later Brendon McCullum reviewed what he suspected was an edge down the legside. It turned out to be a tickle off the pad.
"I tried to get out twice in the 90s,'' Root deadpanned, ``probably in the two worst ways possible, but I wouldn't say I was nervous. I was excited more than anything. I was confident I didn't hit it.