Well if one of these bodies would wake up in the alien containment i think that it could smash the windows and escape but it seems quite impossible. As you can see this guy is in half so he/she (or what ever it is) wouldn't go far. If it would i think it would be more like a reflex to  move a hand and brake a window i don't think that it would go and walk the hallways of a X-com base
 

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