My favourite linguistic trap:
Gloucester and Cirencester do not rhyme.
See, now I’m suspicious about how BOTH of these are pronounced.
Cirencester is actually basically phonetic- soft Cs
Gloucester, on the other hand, goes the Featherstonehaugh* route- ‘ignore as many letters and syllables as you can get away with’- and is pronounced Gloss-ter
…I’ve been trying to come up with a proper reaction to this for six minutes now and can’t come up with more than >:/