I am working as a contractor at the moment and I still do not manage to avoid the requests, just have no problem with declining them.
I have theorised in the past that large organisations will eventually grind to a poverty stricken halt due to these collections.
Working on the basis that your average collection requires a fiver and your average worker takes home about £2k per month, there would only need to be 400 collections per month for the poor employee to net £0 per month and keep his conscience in tact.
Assuming that each employee has an average tenure of 5 years during which time we can assume that they have 5 birthdays, 1 child, 1 wedding, 2 accidents and a leaving do, we can safely* assume that your average employee has 2 collections per year.
Gathering all of this very scientifically calculated data together we can therefore hypothesise that:
2000 (average monthly takehome) / 5 = 400
1 Employee = 2 collections per year
2 / 12 = 0.16666666666 (individual monthly collections per person)
400 / 0.166666666666 = 2400
I am therefore able to declare any company over 2400 people to be fundamentally unworkable assuming that the idiotic, well meaning strangers get their way.
*in accordance with my back-of-a-fag-packet calculations
You fail to account for the £5 x 2400 = £12,000 gift that each employee receives on average twice per year, giving them a total gifted (and therefore untaxed) income of £24,000 per annum.