Do you ever wonder why there is a hole on the cover of Bic pen and the pen of other brands?
The hole is a safety measure.
It has been discovered that kids (and even some adults) absentmindedly chew on pen covers and can accidentally swallow the cover.
Once swallowed, the cover may lodged in the wind pipe and then choke them to death.
If a pen cover is accidentally swallowed, the hole on the cover helps to increase air flow and thereby give the victim the chance to breathe.
What's more, the hole on the cover of pens is a compulsory standard that all pen brands must keep.
It was Bic that first started putting a hole on pen covers, but when it was discovered that death by choking on pen cover reduced drastically because of the hole, the hole thingy became a safety standard that all pen brands must maintain.
—Apotheosis of knowledge
Source: Oluwanishola Akeju