That’s THREE sword attacks by fathers on their kids in October – first California, then Washington, and now Pennsylvania.

Not too many details on this attack from last night. What we do know is that a 42 year old father named Robert Gregory attacked his 20 year old son Lorenzo with a machete. Evidently, Robert accused Lorenzo of taking some money from him.

After the attack, Robert went to a bar and bought a sixer of beer. Because being a dirtbag takes a lot out of you, just in case you never read the Dirtbag How-To FAQ.

Patrons in the bar saw a bloody beer-drinkin’ dude and called the cops, who later pulled Robert over and took him in. Robert was booked and held on $100,000 bail.

Now that we’re nearing the end of October, can we pledge to make November a paternal-sword-attack-free month?

Rob Fitzpatrick, who runs The Startup Toolkit, tells a story about how his father laid an entrepreneurial foundation by making him manage a vending machine. Fitzpatrick talks about how managing a vending machine taught him about costs and profits, keeping stock and working around customers’ preferences. It’s all perfectly summed-up at the end: “when I stumbled into the startup world two decades later, the dots began to connect,” says Fitzpatrick. “Cashflow wasn’t a new concept. Inventory tradeoffs made a bit of sense.”

Check out Fitzpatrick’s whole story over at The Startup Toolkit.

In ‘Real World Math’, Richard makes math fun and engaging to kids, while satisfying their innate desire to understand how things work. Richard figures that if he can make math fun for kids that it will also satisfy their curiosity and point their energy in a positive direction.

As every parent knows, kids love to help cook things, and while they view this process mostly as a chance to play mad scientist with the flour and butter and vanilla, there’s are some great opportunities to introduce useful math concepts whenever you cook together.

For younger kids (2-5), it’ll be more about very simple concepts (counting eggs, identifying shapes of sticks of butter, pepperoni slices, etc.).

But for those 6 and up you can start introducing them to real world fractions, estimating, measuring, and distribution principles.