If there are people in Local, or you are at any type of Anomaly that can be directly warped to without probing down, best practice is to spam it as fast as the cooldown allows.
If you’re at a site that needs probes to find it, then you can relax just a little and only hit it every few seconds to check for probes.
Also, be aware that Combat Recon Cruisers are a thing, and don’t show up on D-scan at all, so even the strictest D-scan discipline won’t help if one of those enters system. Your first clue that it’s there, beyond the person being in Local, is them landing on grid with you.
Scan down those Cosmic Signatures on your probe scanner, most of them are wormholes. While most of those wormholes lead to J-space, many lead to Nullsec and Lowsec. Here’s a few tips for ninja mining in LS/NS while being based in HS.
The signature you probe down is not the wormhole, so don’t bookmark that when you finish probing it. Warp to it and bookmark the actual wormhole.
Once on grid with the wormhole, look at it. With some practice, you can look at a wormhole and tell where it goes, each type has a different look to it. Also, you can save yourself a few clicks on the next tip here, because if the wormhole looks shaky and unstable, it’s probably close to collapse.
Before ever going through a wormhole, “Show Info” on it. That will tell you roughly where it goes, how long it until it collapses from time, and how much mass can go through it before it destabilizes.
That said, you will eventually forget to look and jump through a wormhole to either have it collapse on you, or when you warp to your bookmark the wormhole isn’t there. You don’t have a lot of options in most mining ships, unless you make sure to carry a mobile depot, probe launcher, and a set of probes in the miner’s cargo. Either that, or self destruct everything. I have a dedicated scanning alt for wormhole shenanigans, but I learned the hard way to make sure every other alt I take in has the ability to get out by themselves.
As soon as you go through a wormhole, IMMEDIATELY BOOKMARK THE OTHER SIDE!!! Unless you’re jumping through into Highsec, you will be in hostile space and you don’t want to have to probe down the exit while being chased around a system.