Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

Schwab wants to charge me interest on the money I received for selling TSLA short
Brokers have the right to charge interest on any stock that they lend you. Since you borrowed the TSLA to short it, the owner of those shares can charge you interest until you return them. If you are not getting charged interest on some shares that you have borrowed to short, consider it generosity on the part of the lender.