By Tobias Carroll In the last year, Saturday Night Live has had an excellent track record when it comes to bathroom humor. That’s meant in the literal sense — a recent sketch revealing the innermost thoughts of several men in a corporate bathroom was far funnier than you might expect from its premise. And last night, host Benedict Cumberbatch joined the cast for a likeminded sketch — this one exploring a groundbreaking new technology applied to, well, toilets. Admittedly, the toilet paper shortages early on in the pandemic — and the rise in popularity of bidets — has brought bathroom technolog…