Covid-19 restrictions being imposed across the country.David Alexander, who runs party firm Zander Nation, is continuing to take bookings for house parties, triggering fears his actions will help spread the killer virus.The 36-year-old offered to provide a home disco service after being contacted amid concerns that draconian rules on socialising are leading to an unregulated clubbing scene.Alexander operates the firm with his brother Stuart, who compared First Minister Nicola Sturgeon to Hitler