Spacemen can suffer from a lot of different status effects and temporary afflictions. This page will list them.
Disables
Knockdown
A Knocked Down victim will not be able to move or perform actions of any sort, will still be able to speak. They will loudly fall down and remain prone until the Knockdown is over.
Common sources of Knockdown: Tasers, Stun Batons, Disarming
Stun
A Stunned victim will not be able to move or perform actions of any sort, but will remain upright and will still be able to speak. Pure stuns are very rare, with Knockdown being mechanically identical and far more common.
Common sources of Stun: Electrocution, Beepsky Smash, Goliaths
Unconscious
An Unconscious victim will have the same effects of Knockdown, plus the inability to see, hear or speak.
Common sources of Unconscious: Crit,Carbon Dioxide
Sleep
A Sleeping victim will have the same effects as an Unconscious one; the difference is that some things that can't help against Unconsciousness can reduce sleeping time, like coffee.
Common sources of Sleep: the Sleep action, Morphine, Abductors' baton
Mute
A Mute victim will be unable to speak or whisper until the Mute runs out. They will still be able to emote.
Common sources of Mute: Mute toxin, being a Mime, Changelings' Mute Sting
Confusion
A Confused victim will sometimes take a step in a random direction instead of the intended one.
Common sources of Confustion: Disgust from food, slipping on Space Lube, Flashes
Dizziness
A Dizzy victim's screen will keep tilting until the effect runs out.
Common sources of Dizziness: Alcohol, Mushrooms, Diseases
Drugginess
A Druggy victim's screen will display a colored overlay.
Common sources of Drugginess: Space Drugs, miscellaneous drugs
Hallucinations
A Hallucinating victim will see and hear things that aren't there. Hallucinations can take many, many forms, with some being more subtle than others.
Common sources of Hallucinations: Mindbreaker Toxin, the supermatter, BZ gas