Learn English – The person who requests something is called…

self-righteous

confident of one's own righteousness, esp. when smugly moralistic and intolerant of the opinions and behavior of others.

Also from Wikipedia:

Self-righteousness (also called sanctimoniousness, sententiousness, and holier-than-thou attitudes) is a feeling or display of (usually smug) moral superiority derived from a sense that one's beliefs, actions, or affiliations are of greater virtue than those of the average person.

Self-righteous individuals are often intolerant of the opinions and behaviors of others.

Also pharisaical fits to your example:

Someone who is pharisaical preaches one thing and then does another — not a good trait for politicians or even playground pals.

Why use pharisaical when you could say hypocritical? In general, you would probably use the word in especially severe cases of hypocrisy, particularly when someone is not only a hypocrite, but acts superior and is being particularly annoying about it.

Legless, as Davo suggested in a comment:

adjective
A legless person or animal has no legs.

(Collins English Dictionary)