But what is not acceptable is when the line is crossed into criminal and threatening behaviour.
Labour MSP Monica Lennon has today bravely revealed how she was the victim of a disgusting attack on the general election campaign trail.
She was helping her party in Hamilton when a woman walked up to her, uttered a sexual remark and licked her neck.
The woman pled guilty to threatening or abusive behaviour and her sentencing is scheduled for next month.
Lennon is a campaigning politician who makes herself accessible to members of the public every day.
But politics is damaged when dangerous people behave this way because MPs and MSPs worry about their safety. They are more likely to do virtual surgeries if ...