The young LGBT activist did not expect such a reaction from the elderly Catholic woman.
The vehicle was completely burnt out. The fire brigade arrived promptly and the fire was extinguished.
"Ordo Iuris f**k off!" was the message written on the banner. Ordo Iuris being a congregation of Catholic Polish advocates.
The police have already arrested the perpetrator of the attack.
The meeting will not be attended by representatives of the ruling party, the United Right (ZP).
The protest movement is characterised by its excess and a level of aggression and vulgarity never before seen in Poland.
The group proudly announced the organisation of a "black mass" as a gesture of solidarity with the protests in Poland.
The former American President was an outspoken opponent of abortion.
The level of vulgarity and violence from the protesters shocked the population.
A Polish cardinal has urged protesters to respect religious sensibilities after they attached a rainbow flag to a historic statue