Pay with Clean Money
Money is a generally an accepted means of payment, regardless of where it is coming from. However, this is not enough of a reason to keep money in unpleasant places, particularly money brought out of
Source: Reddit
The shopkeeper from the above image took out the time to take a firm stance against this awful behavior, and rightly so. It would be best to carry a purse around, rather than being disrespectful with your money.