I've often thought about putting in a small 5G - 10G in the office with some Crystal Red Shrimp or Sulawesi shrimp... but considering my work schedule can be absolutely hectic at times, i decided against it incase i don't have time to properly care for it...
Although in our China office, some of the staff wanted to setup a stingray tank when they heard that i was a fish keeper and was used to dealing with large tanks... till the moment i said, i'll help set it up, but you guys have to deal with the maintenance... then every body shut up...