I guess this counts as a RL thing since it happened on an OTT and not a mush.
Tonight's D&D session presented me with a chance to have my character - halfling barbarian - to do something stupidly-heroic. Our rogue fell into a gelatinous cube after the plank she was crossing collapsed under her weight. My halfling, who made it across due to being a small being, took the 30' leap off of the ledge and into the gelatinous cube, attacking it on the way into it. And the thing that made it even more awesome was the fact that it was the only course of logical action to take as the way down might've taken too long, she might've encountered more monsters, ect.
Our DM, the players of the other party members and the friend who was watching to see what combat was like were all like 'Are you really sure that's a good idea?', to which I pointed out the logic behind her action. Our DM was super quiet before he said 'Allllright.', like he couldn't believe that I'd do it.
In the end, the two who were still above it slung ranged spells and stuff at it while the rogue and my gal got out of it and went and attacked it from the ground. It worked out in the end and we all got a good laugh over how the 38" halfling rage monster literally threw herself into the monster, all to help someone out.
I love moments like this!