Doctor's office

Three women are sitting in the obstetrician's waiting room. All three
are
very pregnant and busy knitting baby clothes. The first woman stops
knitting and reaches into her handbag, pulls out a handful of pills and
swallows them. "Must have my vitamins," she says, "healthy pills for a
healthy baby."

They all continue knitting for a while when the second woman stops,
reaches into her handbag, pulls out a handful of pills and swallows
them. "Must have my vitamins," she says, "healthy pills for a healthy
baby."

They all continue knitting again, when the third woman stops, reaches
into her handbag, pulls out a handful of pills and swallows them.

"Healthy pills for a healthy baby?" the first two women ask?

"No," she replies, "Thalidomide, I can't knit sleeves."