I used to play alot of pen and paper games. AD&D Forgotten Realms, Shadowrun, and Gamma World were the most commonly played. As no one else usually wanted to GM, I usually did that. I believe I can share an amusing story from a Gamma World session. My players were a mixed group, 2 semi-experienced characters, 2 newly created characters, and one NPC. They had just rolled for a random encounter and hit the magic number for a dangerous encounter, which would involve 5 Possors(a specially created monster like a large possom. With a very very long prehensile tail that the creature uses as a weapon and to get around) and a roving clan of sentient plants, approximately 40, who look basically like your average everyday tall bush. It’s been a while, but I’ll try to reconstruct the events.
GM: You arrive at a fork in the road, branching through a field off to the north and down a small trail lined with bushes to the west.
NPC (an old altered human with intuition and enhanced sight): I have a bad feeling…
Player 1, group spokesman (A 6-foot tall Squirrel with a cybernetically enhanced leg complete with gun compartment, a la RoboCop): I hate forks in the road. I stop and take a close look around.
Player 2 (a heavily muscled altered human with purple skin, not too bright character): Is there something to kill?
P1: Hush.
GM(rolls): The dirt trail here branches in two directions, nothing about the trail itself seems unusual. The path to the north opens quickly into a clearing and continues off into what appears to be a large field. The path to the west is narrow, and the bushes crowd the trail down to a point where travel will only be possible by single file. The foliage around you sways in the breeze as you notice what seems to be the end of a rope extending from a bush at the point of the fork in the path.
Player 3 (the only pure strain human, armed with a .38 pistol and a VibraBlade, kinda like a lightsaber): Rope is always a good thing, let’s take it and keep going.
Player 4 (a 3 foot tall sparrow that wore specialized flight goggles.):Are there any high trees near me?
GM: Yes.
P4: I fly up into a tree and keep an eye on things from above.
P1: I walk over and pick up the rope and tug on it to try and pull it out.
GM (rolls perception, borderline): As you approach the rope, you notice it appears fuzzed up as if it were heavily frayed.
P1: Who cares, it could be useful anyway. I grab it.
GM: You grab the rope and tug on it, it appears to be stuck to something behind the bushes. The rope has an odd feel to it and you…
P1 (interrupting): I yank on it really, really hard.
GM: As you heave on the rope with all your might, a shrill screaming noise is simultaneously emitted from the other side of the bush in front of you. The rope coils around your arm, and you are violently flung away from the bush, back toward your friends. You crash to the ground feeling a bit dizzy, but are otherwise unhurt. The “rope” swiftly vanishes into the bushes.
NPC: Run! That’s the scream of a Possor!
GM: A moment later, several Possors emerge from the bushes, their long tails snaking in the air in a threatening manner. They don’t look happy to see you.
P4: I begin to fly down to the ground to join my friends, gathering energy to use my static charge.
P2: Hah! Something to kill finally! I swing my sledgehammer around like a maniac and let out a fierce battle cry!
P3: I draw my sidearm and take aim.
GM: The Possors scream in defiance of your disturbing them, and charge!
P1: I jump up and use my Hands of Flame to fry as many as possible as they come into range.
GM (rolling: critical failure: backfire): You focus your energies as you point your fingertips at the charging group of furious creatures. Releasing the energy, something goes wrong. You burst into flames as the fires begin to consume your fur. Once again your are thrown backwards. You crash into a bush, almost knocking it over, landing with a thud on the ground as the flames begin to wane. You suffer X damage.
GM: The bush you crashed into rights itself and uproots. A branch snakes out and snatches your belt knife. The tree lumbers backwards slashing off the few branches that had caught fire. All around the path, various bushes begin to uproot. The Possors stop their charge, distracted by the multitudes of living wood rising from the ground. They seem intimidated by the sheer numbers of rumbling bushes. The trees seem to have “turned” to face you. You all have bad feeling about this…
At this point, all my players have a very dismayed look on their faces. Fortunately, all the mutants had some type of flame-based mutation and were able to fend off the bushes. The Possors fled before the hoard of living wood, and all was well, as the players discovered the Possors stash of “shinys” 
Alas, my gaming group moved in different directions and I have not done anything since. Now I play MMORPG games like EverCrack and Ultima Online, when I have the time.
Still, it’s nice to remember the good old days of gaming. sigh