And for when the Walkie talkie fails

It has always amused me to watch people towing caravans trying to reverse park their rig in caravan parks. Generally, and not wanting to stereotype, the female gets out of the passenger seat with her walkie talkie and guides the male driver as he tries to reverse their van into the site.  

I watched this in the FKK campsite. Not a walkie talkie to be seen or heard.  

The driver got out of the towing vehicle and unhitched his van, then using a remote control guided his van into position. Amazing!!