Believe It Or Not, These Aren't Actually Design Flaws

The Hole in a Pen Cap

You'd think the hole in a pen cap serves no purpose, but it's actually a safety precaution. For whatever reason, people love to chew their pen caps. If a child happened to swallow one, the hole in the top allows air to circulate to prevent choking.

The More You Know

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Stow bulky items overhead by cementing together a simple rack from 2" PVC pipes and fittings. Bolt the straight pipe to the ceiling joists to support heavy loads, and screw the angled pieces from the 'wye' connectors into the cross brace to stabilize the whole rack.

Post originally appeared on Upbeat News.