"Old guys know better than to sign a term-sheet loaded with a nasty double-trigger option acceleration that would consign the founders to indentured servitude f

"Old guys know better than to sign a term-sheet loaded with a nasty double-trigger option acceleration that would consign the founders to indentured servitude for years after a liquidity event." Are there any VCs that would agree to single trigger acceleration? I was under the impression that 25% acceleration on acquisition with a double trigger was pretty standard.