NO, I think that mice can't give themselves a heart attack.
Racism has long been a problem in the mouse community.
No, but they could attack if provoked.
Mice are actually very cute.
that do not attack people
Impossible to to know. Mice do have have to be registered.
No, mice do not eat humans. Mice primarily feed on seeds, grains, fruits, and insects. While they may nibble on human food in homes, mice are not known to attack or consume humans.
Some people like mice and some do not. If your question is aimed at the whole site's user base, it is more likely than not that some of the site's users do own mice. Owning mice isn't a requirement to use WikiAnswers, and most people don't own mice.
Walt Disney in fact do have a fear of mice.
Many people fear mice due to their sqeak.
Philadelphia
You should never put mice or any other rodent of different species together. They will attack eachother, and most likely kill eachother if it gets to the extreme.