Oh, this brings back so many flashbacks!!!
Including using ‘wheat paste’ – a type of ‘glue’ (if you can call it that) that is made up from mixing wheat flour with water.
As kids behind the iron curtain, this was the ‘go to’ home-made recipe for glue when no real glue could be bought in the stores. It is temporary at best and dissolves at the first rain…without making any mark whatsoever on the material it had been pasted on.
And, it would also ‘flake off’ if it dried out too much – say about 12 hours after being applied in a low humidity environment.
In other words, using ‘wheat paste’ glue is proof that no property damage was intended or inflicted. Yet, the arrest and charges and potential jail sentence remain. To be served in mosly Islamic part of the prison, no doubt…