Humour For All Occasions

This is a most interesting English lesson. I did not know that:

1. "listen" and "silent" use the same letters,
2. "race car" spelled backwards still spells "race car",
3. "eat" if you take the first letter and move it to the last, it spells "ate",
4. "illegal immigrants," if you rearrange the letters and add a few more, it spells,"Go home you free-loading, benefit-grabbing, resource-sucking, twits."

How weird is that?