Later, employees selected customers one at a time, like bouncers at a trendy nightclub.
He added that the company would consider trying to clone the cats of carefully selected customers.
These products are now being tested by selected customers, and could be on the market within a year or so.
"Discounts for selected customers without lowering the overall price of EpiPens are insufficient, because the excessive price will likely be passed on through higher insurance premiums," he said.
The drop followed a US promotion that let randomly selected customers "pay with lovin'", such as asking someone to dance, or giving someone a fist bump or hug.
The company's most recent campaign "pay with lovin'", which allowed selected customers to pay with a dance, a hug or a fist bump, failed to boost sales.
This follows another rewards cut by John Lewis, which dropped the free cake and tea for loyalty-scheme members just months after it had launched it (selected customers continue to receive the vouchers).
Last April, it began sending out statements to 35,000 randomly selected customers, rating them on their energy use compared with that of neighbors in 100 homes of similar size that used the same heating fuel.
Because most dark pools and internalizers are operated by banks, Finra, the industry-financed regulator, is also worried that the banks can provide a sneak peek of the trading their customers are doing to their own traders and selected customers.
