A Porirua vape shop plans to install smoke cannons after a man entered the store over the weekend with a knife and scissors demanding money.
Shosha operations manager Nabhik Gupta said a man wearing a mask and a hoodie entered the store around 1.30pm on Saturday.
He said the man threw a bag on the counter and said "give me all the cash you have or I will stab you".

Customers inside the shop locked themselves in the bathroom for protection, he said.