Make doors more difficult to hack

[Frank_Stein]

I honestly wish instead of timers we had the player sprite like shake a little while they are using the screw driver or something. Having big timers over peoples heads for everything kinda looks lame at times. I prefer more subtle ways of telling people someone is doing something.

I think the timers are best for when you want the player to know how much longer an action will take. 

For small delays, I agree you could drop it in favor of some other visual indicators