The Port-a-Sci RNG Malfunctions

[Roomba]

Personally I'd advocate toning down the portasci malfunctions for an alternative reason - it makes it too open to abuse. There are quite a lot of people who will sit at the telesci console and spam invalid coordinates all round long, firestorming the corridor and summoning critters with wild abandon. That's not too difficult to shut down, but with the portasci malfunctions it gives them the capability to do the same anywhere on the station. And considering that zombie round I witnessed, it wouldn't be very difficult for a screwup or two to wreck the station.