I was once told that yellow makes you neurotic, but I am really not convinced! It always reminds me of sunshine, warmth and laughter. Even your title made me smile :)
Saw this on PP - what a fabulous macro! Love to try and take shots like this to see the amazing details nature has to offer. Lots of yellow in the garden at the moment. If you have a more general image I might make a stab at its id :-) fav!