Pen Lids Keep the Pen From Drying Out, Right?
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Since childhood, once our parents allowed us to use ink, it has been drilled in our heads that it is important to keep the lids on pens to keep them from drying out, and to keep a pressure balance that can prevent the pen from leaking. But turns out, the hole in the pen lid has a purpose, too.
The holes in pen lids are actually there to lower the risk of suffocation of small children. If a child was chewing on the cap and choked on it, the hole keeps their airway from closing up entirely, thus preventing suffocation. Raise your hand if you chew on pen lids all day at school!
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