Do and don't in Nepal

There is always a long list of do and don't in different cultures.
Here is my list and explanation:
First: Giving to the poor? To beggars?
This is an individual thing to do. I for my part am very selective. I do not give to professional beggars near temples for example. If I meet a beggar somewhere  and he-she is young..even if she carries a baby which she trusts into my way...I do not give. I ignore it.
Explanation: Young beggars belong almost all to a beggars guilt that is organized like a mafia. It is even unlikely that they are Nepalese...have a closer look. They often are from Bihar in India...from across the border. Nepalese beggars can be distinguished into three groups:

The street urchins...don not give money! They are organized too and the money is collected by an elder kid who is in the drug trade or worse...in child prostitution. Help street-kids by supporting organizations that care them. CWIN for example. Inquire about CWIN and you find out that they do a greater job than any individual tourist can do.

The people with a visible handicap. Look critically...most are inflicted in childhood by the Indian beggars caste and the person is member of this professional group. Usually they have a much darker complexion than the Nepalese.
If you meet a person young or old who is missing a leg and he is genuine Nepalese (talk to him...find out) then you can give your share with a good conciousnes. This applies also for the aged. Unfortunately there are many old ladies and men who have to beg because their kins have no means to support them. I always give to old beggar ladies. First I chat with them. Learn a few Nepalese words like "Namaste Amma...costo cha?" (Good day mother...how are you?") Because if you do not get a response on this then she also may be fake. If you stay longer in Nepal you easily see the difference between genuine Nepalese and the Indian beggar caste.

Here is a quick list of don't for Nepal:

Do not enter a private house-living quarter, room etc.
with your street shoes or sandals on. Leave them outside at the entrance!

Do not impose to shake hands with someone! Only if  a Nepalese offers a hand. (and this is very seldom happening) Most Nepalese only fold their hands to the well known Namaste-greeting gesture. Do the same with everyone.
Do not touch food with your left hand! The left hand is for...where the sun never shines!

Don't walk around a temple or a holy shrine in the wrong direction...it is bad luck for everyone who sees it! (one always walks left side around!) Also when you walk on the side-way...it is considered impolite to by-pass a person that walks in front of you at the right. Always try to walk left.  Just like in Traffic in Nepal...it is left side like in England. There is much more....feel free to ask about details!

This is just heartbreaking... I've heard so many stories of "professional beggers", I'm revolted to what they do to children.
And although I am more likely to give, it really depends on the case. In my homeland (Angola), if you give to one kid, suddenly, dozens come from nowhere. If you don't give what they expect, they can even insult you :-/
Strange world we live in...