Skip etiquette

The skip finally arrived this morning nearer to 9:45 than 8am. But it's here, by the time it got here though the gardeners weren't. The two weren't reunited until nearer 14:30 but the skip still wasn't used!  

This left me to wonder if there is some skip etiquette (skipiquette?) around here. I wonder if it's "polite" to wait until the house owners have added at least some of their rubbish before the Great British skip game begins? 

It's still empty, so I guess we'll find out tomorrow morning!