"Watching" system (not yet implemented):
A character may be 'watching' one or more objects. This increases the chance of noticing actions by those objects.
There is a list of watched objects, and a percentage for each one. The percentages may not exceed 100%.
Watching is very important in combat.
Watching is triggered by:
  * "watch" command (80%)
  * "look" command (50%)
  * Noticing 'suspicious' actions (30%-80% depending on situation).
Upon triggering watching, all other watches are "squeezed" into the remaining space, and anything under 1% is dropped. Example:
watching: {
  3: 20
  352: 20
  33: 3
  2422: 2
  40: 5
  943: 50
}
watching: {
  1341: 50
  3: 10
  352: 20
  33: 1
  40: 2
  943: 25
}
