Leaving him aside, Fred and George had once been caught red-handed by Professor McGonagall at the exit of a secret passage.
The two had been climbing out of the storeroom behind Scrivenshaft's Quill Shop, carrying a box of newly developed Skiving Snackboxes, when they ran straight into McGonagall, who had come to Hogsmeade to buy tea.
Professor McGonagall merely stared at them for a few seconds with a look that could make any Gryffindor instantly reflect on their entire life, then deducted two points from each of them and turned away expressionlessly.
Ever since then, the twins had become even more certain of one thing: Professor McGonagall was far more tolerant of them sneaking off to Hogsmeade than they had imagined.
Although the House of Dreamweavers only opened on weekends, business was exceptionally brisk.
Somehow, Percy had found out that Fred and George had a stake in the shop.
At first, Percy had thought working for his two younger brothers was utterly humiliating, but once he discovered that two days of weekend wages and commission came to more than six Galleons, he never brought it up again.
He even began taking the initiative to study the effects and usage of the prank products so he could pitch them to customers more effectively.
The first batch of twenty Flying Letter Notebooks sold out in less than two weekends, and someone even wanted to buy the demonstration model in the shop window at full price.
With no other choice, Lee Jordan and Kenneth also joined in making prank toys and Flying Letter Notebooks, but even then, supply still fell somewhat short of demand.
"How do the other long-established joke shops operate? Surely they can't make everything by hand too?" Fred asked the question weighing on his soul as he carved runes at