There was actually a company attempting to do this using nets: http://www.popsci.com/rapere-anti-drone-interceptor http://www.popsci.com/rapere-anti-drone-inter

There was actually a company attempting to do this using nets: http://www.popsci.com/rapere-anti-drone-interceptor http://www.popsci.com/rapere-anti-drone-interceptor But their website seems to be replaced with blogspam though, so I assume they went out of business.