The #LightningNetwork channel I opened from one of my nodes to General Bytes, who provide the POS terminals at #HCPP19, is already completely spent on my side. Forwarded ~80 payments for other visitors. Time to test some re-balancing plugins.
Pro tip for #HCPP19 visitors: you can open a #LightningNetwork channel directly to the point-of-sale system's node. The ATMs offer an "open channel" button, where you can find the node address.