My first 4 flights in a small aeroplane (i.e. non commercial) were aerobatics trial lessons - wanting to try to learn how to do what I'd just experienced was my sole reason for getting my PPL.
On coming back from one of my aero's sorties, which I spaced between PPL training flights...... with a HUGE grin on my face, bouncing around the flying club, slightly hyper - one of the older straight and level pilots just looked at me...shook their head... and said "Girl!!.... you're totally mad".
5 years on from that first aerobatics flight my aerobatics still aren't very good 
.......