but we are not due any lectures from the gas station with nukes
Yes you are.
Russia represents a fiscal fortress. What really matters is our overall debt burden, which is tiny compared to both Poland and the United States (20% vs 50% and 120%).
The bond yields may seem extreme, but the primary driver for this is inflation (which is stubbornly above 15% in Russia since the war started).
This means that every year, Russia's debt becomes devalued by 15% in real terms. Since we don't need external rollover financing, we don't care if foreigners discount that debt. In fact, foreigners can't buy our debt anyway, because their governments forbid them.
Together, this means that every 7-8 years or so, we inflate away the lion's share of the previously accumulated debt.
Further, it may seem like paying a 15% coupon is very expensive, but you have to remember that the primary buyers for government debt in Russia are state owned banks and pension funds. We essentially have a captive buyer, that has no choice but to buy Russian bonds. Effectively, the government's left pocket, pays its right pocket - in the same way as happens when the Fed begins to buy trillions of dollars of Treasuries.
In short:
1) Russia has a closed capital account (meaning Ruble debt is trapped inside a domestic cage).
2) Russia has a tremendously healthy current account surplus from commodities (even as the ruble depreciates, the river of FX keeps flowing in).
3) We have a population that has little choice but to hold Ruble-denominated financial assets
4) This combination lets the state use inflation as a stealth tax, eroding liabilities quietly. What Novichok constantly brings up - inflation as a tax.
For the Kremlin, high ruble inflation is great, because it allows them to meet their obligations much easier. Each barrel of oil brings in more and more rubles, whereas pension and state salaries' growth do not keep up.