Totally underrated - chaos computer club anno 2013 - i heard they are socialists today... But anway this anon sketch is awesome!
https://media.ccc.de/v/30C3_-_5500_-_en_-_saal_g_-_201312291900_-_anonymity_and_privacy_in_public_space_and_on_the_internet_-_aluburka#t=35