Maoists never "mind their own business." As authoritarians, they are always minding other peoples' business, reading habits, sexual activities, friendships, and work.
Maoists in particular are always trying to recruit among baby anarchists (they call them "rebel youth," refusing to acknowledge their self-identification as anarchists), those just starting to question the status quo. Such young folks are particularly vulnerable to hip slightly older folks who are savvy and have developed some kind of street cred.
When the RCPers were ejected from the SF Bay Area Anarchist Bookfair in 2009, they set up their deceitful propaganda outside the rented premises, and were unceremoniously baptized by some folks from our team. Yay team!
As the heirs to decades of murder and suppression of anarchist and independent radical activities, RCPers don't deserve anything less than ejection, water, insults, taunts, and other actions meant to convey their status as most unwelcome intruders at any and all anarchist events.
There can be no polite conversations or negotiations with our enemies.