Ghost in the Shell

[ghostrek]

what do they do when the humans/cyborgs are not around

[DRC]

Well, there are two episodes that were we see what they do in those situations. For the most part, they're kept in sleep mode overnight though.

[BloodwerK]

I remember when you used that Tachikoma icon.

[XenopusTex]

Well... they have probes and ports ... you figure it out

But yeah, usually in sleep-mode it seems.  Or else developing suicidal tendencies ;P

Ever notice how the Tachikomas seem rather underimpressively armed and armoured against other mechanized units?  Guess the central hardpoint can mount a heavy weapon, mortar type device or small calibre rotary autocannon (maybe even just a heavy rotary machine gun like a .50 calibre or a 12.x mm).