In this topic, @27sp.sandra pointed out some funny false friends between English and Spanish.
False friends are such a beautiful way to learn a new language. You use them once and never again. The other meaning of this similar word in the language you learn will always be in your head 
What was your funniest situation using false friends?
For me it was not really a āfalse friendā situation but ābegginer that canāt hear wellā situation.
When I moved to Germany , after a week or 2, I was driving with a friend through the city and I saw the signal āRathausā and I asked my friend what was the meaning of that word ( because I was already thinking germans wouldnāt name a place āhouse of ratsā hahahaha) .
Thing is, that my friend didnāt know how to explain it and the only thing that came to her mind was : Thatās were Der BĆ¼rgermeister works.
I was amazed and my friend asked me if I knew Der BĆ¼rgermeister , to which I answer :
OF COURSE, I LOVE JĆGERMEISTER!
After 4 years, she keeps reminding me of that mistakeā¦Specially when we drinkā¦
Do you want some BĆ¼rgermeister, Stef ? 
Iām with @stefdival 
German has given me also a lot of funny moments. One day I was walking with a friend and I saw a beautiful swan 
. Unfortunately, when I expressed myself in German instead of saying Schwan I said: āOh wie schƶn! Guck mal, dort ist die Schwein 
ā 
. Iāll never forget the difference 
.