Question for everyone who says some things are ok, as long as they're not "excessive".
Who decides what's excessive? Does a company policy stipulate what's reasonable or is someone (staff or manager) making a judgement call that the odd phone call, stamp, photocopy or pen from the stationery cupboard is ok?
The reason I ask is that obviously everyone's interpretation of reasonableness is different.
At my workplace, our policy says to keep personal Internet use to a minimum. However a recent event has demonstrated that this policy isn't tight enough if we ever want to give a warning for excessive use as what one staff member considers minimal, another thinks is excessive.