photocopiers are bastards of the highest order closely followed by fax machines.
Then when they combine everything into one unit it turns it into a device of satan. The twats even email as well when you don't want them to.
Due to flight safety and CRM issues of loosing your control and swearing at an object its always better to delegate the operation of such devices.
Know what you mean about reverse parking. It was brought up in a couple of CRM meetings about certain Captains powering back aircraft when they had several outstanding hire car insurance claims for damage while reverse parking.
And as for the rail road boys in the US. They have the job of fixing them as well. Much like the armys POM's (plant operator mechanics) Always did think it was a good idea for those that broke it fix it.