Never got mine to do that either - what's your secret? ;)
Like the top one particularly...
Just it's way of saying "Oi!! I wasn't finished yet! DO YOU MIND?"
;-)
.... can't get mine to grow in the first place :( .... think I may have dud bulbs ...
they are in full sun, and have water, thats the only secret I have....silly things make one happy don't they :-)