My colleague quit his job to set up a stall selling starch sausages.

On the first day, he made three hundred yuan, and he was overjoyed.
On the second day, the city management officers came and fined him five hundred.
On the third day, he changed locations and was chased away again.
After a month, including fines, materials, and stall fees, he lost two thousand yuan.
He came back to ask me for a loan, and I said, "Aren't you just setting up a stall?"
He said, "Stalls don't make money; the ones that do are those selling fried skewers and grilled squid, the threshold is high."