I was in a group of three players with 2 people who showed up on occasion. During this particular event we had only the main three. And we had just gotten to level 3 or 4. Me playing a psion, a guy playing a warrior cleric, and a guy playing a sorcerer. The DM was new and decided to throw a group of 40 kobolds and 3 dire weasels against us as we tried to sleep camped on a riverbank.

He did each of the kobold's turns as individuals. We won the fight reasonably well even though we were pretty low-op. (Other psicrystal affinity all of my feats were the extra power points feat. The name eludes me.)

The fight took forever and the DM apologised later and said he'd never use so many units again because it felt like he was playing the game alone. He could tell we were pretty bored as he resolved so many kobold attacks between our turns, one by one.