Well, you're not alone. Recently, an organization raising money for the Humane Society used an adorable dog to capture the hearts, and wallets of susceptible passers-by. The dog was shivering in the cold. Although the intentions may be good, the common sense of these panhandling organizations is non-existent.
Money is a result of hard work and skill.
It doesn't take much, if any, work or skill to stand outside and harass someone else for their hard earned money. Begging by proxy might make students feel good, but it is not the most valuable charity work that can be done. It's annoying and we're sick of it. If these organizations would really like to help charities by raising money, they should try actually working for it. Pick up bottles worth deposit money around campus, rake leaves, do something, anything.