We're new owners to 2 board (7 wks). They have a hutch with a run below, with access to run via a ramp when we open a hatch for them (during the day). Currently they seem to be hiding in bedroom area.. they have both been up and down ramp a couple of times (when I went to speak to them and they were trying to get away). Should I ensure they have time on grass every day, or just leave them to explore in own time? We've had them since tues but only introduced access to the run yesterday