I was happily making rocket propellants in the shed back in the early 1970's and got to the point where I needed concentrated acids which (as a 14 year old) the local chemist would not sell to me.
I used to help the chemistry teacher at school set up experiments over lunchtime, so I asked if it would be possible to............
After school that day I was called to his office and thought "here we go" the heads going to be there and its going to be painful.
I can see it in my minds eye even now. Opened the door, walked up to his big oak desk, sir takes his reading glasses off pushes a box full of sawdust towards me and there they were. Half a pint each of conc Nitric, Hydrochloric, Sulphuric and conc Ammonia all nicely fuming through the (loose) glass stoppers.
I did say thanks! and then put the box on the handlebars of my bike and cycled home (one handed) to the Little Green Shed at the bottom of the garden.
How times have changed.
Postcript, about a year later "Sir" also took me to see "somebody" to explain what I was doing in The Shed. I didn't know at the time but this was the head of R+D for ICI who immediately offered me a job working for him as soon as I left school (I was sixteen).
I have a lifetime of well paid and interesting chemistry to thank "Sir" for and met him in a cafe a couple of years back - he also said "how times have changed".