Started on trombone, graduated quickly to bass trombone, started playing bass guitar (some 16 years ago now) quickly moved to fretless 5...
Also play a few chords on keys, likewise on guitar and recently started playing drums (just for fun) - something I've always wanted to do
However, main instrument these days is bass and always will be - still playing trombone but only the odd bits and pieces (doesn't really work too well after 12 months in the box!)
It's good to make some noise, what ever your weapon of choice