Strawberry and runner beans

Hi we have some strawberry plants and runner beans that have a lot of holes in them can't see slug snail etc but wondering if this could be down to a flying bug of some sort as we got same issue with pond plants.. Thanks for your help and advice..

 

The damage looks to quite old as the edges look brown and dry. Could be any of a number of things; could be damage by hail stones, could be by thrips or some other sap sucking bug.
With sap sucking insects they can damage leaves in the bud or when very young; then as the leaf expands the damaged parts get stretched and holes appear.

 

Is this was done by a slug and the slug would've liked it, there would be nothing left of your plant.
I'd write it off as "lucky they didn't eat more" and stop worrying.

 

Thanks for the advice but I am not a gardener but first time for everything