I've got a few.
I know the BASIC programing language for both Atari and Commodore due to having had a Commodore 64 and Atari 800XL growing up. When I learned to read I actually wrote games for them. Having both of the Computers set up baffled my friends in Middle School. I also still have them and all of the peripherals made for them.
Large scale bed bug infestations can cause major infestations of things like the bed bug eating assassin bug and cockroaches, as those are their predators. Also a feeding bed bug often bites three times along a blood vessel.
I know all of the standard load outs for a great deal of Battlemechs from the BattleTech franchise. One of the stranger choices is on the Timber Wolf a.k.a. Mad Cat Alt. Config D. It mounts Two Extended Range Particle Projection Cannons(one in each arm) 4 Streak Short Range Missile Launchers 6(Streak SRM-6 for short, two on the left and right torso each) and a single Extended Range Small Laser. The odd part is that one Streak SRM-6 on each side is mounted facing backwards, considering the nature of Streak SRMs in general it'd be extremely difficult to aim them.