The 76-year-old "known anti-royalist" was ordered to stay at least 500 metres (550 yards) away from the royal couple (BBC)
Very obviously therefore, the Republican (sense: anti-imperialist, e.g. Brutus Senior or Junior ) campaigner is working out how to throw shit from significantly more than 500m away.
I can think of two [edit : three] credible technologies : a trailer-mounted trebuchet ; a shit-atomiser sited over 500m upwind and producing a miasma blowing downwind ; or a remote-controlled plane fitted with a real-time camera and a shit-dispenser.
Can Slashdot come up with better suggestions for assisting this vital free speech task?
As a corollary, the mechanism for dispensing shit from the model plane needs a name. Preferably a "backronym", such as an "ADAM — Automated Dispenser of Aerial Manure" or a JAMIE