We met again today... this time to play in my son's DnD campaign world, then to play in my own Star Clans Traveller campaign.
We spent about an hour revising our characters to handle the move from DnD 4e to AD&D 2nd ed. Some folks opted to start from scratch, others converted backwards, rebuilding 2nd edition characters as close as possible to the 4e characters we had. For those who kept their characters, we recalculated experience based on the percentage from current level to next level... one of the kids said, "Wow, we actually CAN use algebra outside of school."
Once we got underway, the game was a lot of fun. We played for about 4 hours and by sheer luck managed to work our way through the dungeon almost directly to the sceptre we were asked to retrieve by the local Big Wig. We lost one character... one of the 4e retreads... a dragonborn. We managed to find a cleric willing to resurrect the character, but a failed resurrection survival roll meant another quick death... and no more chances to come back.
Afterwards, my son said he was thrilled with how much less time he had to spend on mechanics and how much more on interacting with us players.
In my Star Clans game, the party was asked to attempt to bring two more worlds into alliance with the Ardeni Kingdoms. Two characters ended up in jail on one of the worlds in the middle of negotiationsr, and the rest of the group told the local government they should try them according to local law to show the Ardeni Kingdoms wouldn't interfere in local politics. They were asked to head home, then come back a few months later, so headed back to their starship and took off for Arden. In the meantime, one of the two party members who was in jail used his psionic telportation to jump directly from his cell to his stateroom on the ship before it lifted off... The game ended with the pilot rolling a misjump. Odd whine from the engine, and after a week, they didn't drop out of hyperspace where they expected... in fact they didn't drop out at all! We ended for the night at that point, with the party trying to decide if they could shove someone out of the airlock in hyperspace! I'll post the game report tomorrow after work over on Star Clans.