A truly good sense of humor and the ability to tell jokes is not had at the expense of others.<quoted text>
Some people just can't laugh...
In addition, despite your "jokes" being at the expense of others, what also makes your "jokes" not at all funny is that they are totally devoid of wit and cleverness.
Anyway, here's a joke you might enjoy and which doesn't come at the expense of anyone in not being at all possibly hurtful to anyone or any group in particular:
It was Christmastime and the mailman was going around collecting gifts from people on his route- getting tips, cookies, gift baskets, etc.
He came to one house where the husband was out of town on business.
The woman opened the door dressed in a negligee and she invited the mailman upstairs.
There they had a night of wild passionate sex.
In the morning, the mailman came down and saw that the woman had prepared a sumptuous breakfast for him- omelettes, waffles, etc. along with a cup of coffee under which he saw a single dollar bill.
The mailman ate his breakfast and said to the woman:
Wow- last night was wonderful and then to come down to this wonderful breakfast- this is great, but let me ask you: what's with the dollar bill under my coffee mug?
The woman replied: Well, before my husband went out of town, we were discussing what to give you for Christmas.
My husband said: F*ck him- give him a dollar.
The breakfast was my idea.