No food please, we're Belgian

We're so used to many symbols that we don't question them. No entry signs, one way signs, signs for men's and women's toilets...

But I came across one in Ghent that amused me, because it was slightly different.

I've often seen, in Italy, the 'no food in the church' message with a picture of an ice cream.

But in Belgium, of course, ice cream is only one of the two ubiquitous foods.

So the sign gets a picture of a cone of chips, with a big red X through them.