Definition:Roman Numerals/Warning

Roman Numerals: Warning
Because of the similarity in shape between the letter $\text I$ and the number $1$, it is a common mistake to confuse them and use $1$ where $\text I$ should be used.

Consequently, hilariously clumsy-looking constructions can be found in published works (usually in pretentious artwork such as can often be found on the covers of contemporary musical product) such as $\text V 1 1 1$ for $\text {VIII}$.

Even more hilarous is hearing muggles vocalise the above as vee wun wun wun.