2907: 13 kft with no helmet or goggles

We have briefed a 7-way, an easy one. Just after take-off, koen says "shit, I forgot my helmet", then "does someone has spare goggles ?" and then "my altimeter and my gloves were in my helmet" and "this is going to be a fun dive".
It is about -15° at 13 kft, linked exit, with koen floating, his ears must be freezing off. Shake, OK, there we go, I 'm coming from the inside, practikally no tension, a very smooth exit, I check koen and he has his eyes firmly closed. First time round is a bit slow, 2 guys on the outside are having fallrate problems. Koen can make all his moves in place, and we only have to help him a little: maybe he's crazy, but he 's good...
We briefed 4 points, and only after the fourth time round, my ditter beeps, not too bad. I give koen 2 taps on the head, to let him know we are off, and I track away. Between my legs, I see him waiting three seconds, and then pull in place, like we last-minute-decided in the plane.